Simplifying The Expression (2a)^(1/2) × (2a^5)^(3/2) A Comprehensive Guide

by THE IDEN 75 views

(2 a5){3 / 2}$ A Comprehensive Mathematical Exploration

In the realm of mathematics, simplifying complex expressions is a fundamental skill. This article delves into the intricacies of simplifying the expression (2a)1/2imes(2a5)3/2(2 a)^{1 / 2} imes (2 a^5)^{3 / 2}, providing a step-by-step guide and shedding light on the underlying mathematical principles. Whether you're a student grappling with algebraic manipulations or a math enthusiast seeking to expand your knowledge, this exploration will equip you with the tools to conquer similar challenges.

Breaking Down the Expression: A Step-by-Step Approach

To effectively simplify the expression (2a)1/2imes(2a5)3/2(2 a)^{1 / 2} imes (2 a^5)^{3 / 2}, we'll embark on a journey of mathematical transformations, applying the rules of exponents and algebraic manipulation. Let's break down each step:

1. Understanding Fractional Exponents

The cornerstone of simplifying this expression lies in understanding fractional exponents. A fractional exponent, such as xm/nx^{m/n}, represents both a root and a power. The denominator, 'n', indicates the root to be taken, while the numerator, 'm', indicates the power to which the result is raised. In essence, xm/nx^{m/n} is equivalent to the nth root of x raised to the mth power, or (xn)m(\sqrt[n]{x})^m.

Applying this understanding to our expression, we can interpret (2a)1/2(2a)^{1/2} as the square root of 2a, denoted as 2a\sqrt{2a}. Similarly, (2a5)3/2(2a^5)^{3/2} signifies the square root of 2a52a^5 raised to the power of 3, or (2a5)3(\sqrt{2a^5})^3.

Fractional exponents are a powerful tool, allowing us to express roots and powers concisely. Mastering this concept is crucial for simplifying algebraic expressions and solving equations. The ability to seamlessly convert between fractional exponents and radical notation opens doors to a wider range of mathematical manipulations.

2. Applying the Power of a Product Rule

Next, we'll invoke the power of a product rule, a fundamental principle in exponent manipulation. This rule states that when raising a product to a power, we distribute the power to each factor within the product. Mathematically, this is expressed as (ab)n=anbn(ab)^n = a^n b^n.

Applying this rule to our expression, we can rewrite (2a)1/2(2a)^{1/2} as 21/2imesa1/22^{1/2} imes a^{1/2} and (2a5)3/2(2a^5)^{3/2} as 23/2imes(a5)3/22^{3/2} imes (a^5)^{3/2}. This transformation separates the constant and variable components, making subsequent simplifications more manageable.

The power of a product rule is a versatile tool, allowing us to break down complex expressions into simpler components. By distributing the exponent across factors, we can isolate and manipulate individual terms, paving the way for further simplification.

3. Simplifying Powers of Powers

Now, let's address the term (a5)3/2(a^5)^{3/2}. Here, we encounter the power of a power rule, which states that when raising a power to another power, we multiply the exponents. In mathematical notation, this is represented as (xm)n=xmimesn(x^m)^n = x^{m imes n}.

Applying this rule to (a5)3/2(a^5)^{3/2}, we multiply the exponents 5 and 3/2, resulting in a5imes(3/2)=a15/2a^{5 imes (3/2)} = a^{15/2}. This transformation eliminates the nested exponents, simplifying the expression further.

The power of a power rule is a cornerstone of exponent manipulation, enabling us to simplify expressions with nested exponents. By multiplying the exponents, we can consolidate multiple powers into a single, simplified exponent, making the expression more manageable.

4. Combining Like Terms: The Product of Powers Rule

With the individual terms simplified, we can now combine like terms. This involves applying the product of powers rule, which states that when multiplying terms with the same base, we add the exponents. Mathematically, this is expressed as xmimesxn=xm+nx^m imes x^n = x^{m+n}.

In our expression, we have 21/2imes23/22^{1/2} imes 2^{3/2} and a1/2imesa15/2a^{1/2} imes a^{15/2}. Applying the product of powers rule, we add the exponents for each base:

  • For the base 2: 21/2imes23/2=2(1/2)+(3/2)=24/2=22=42^{1/2} imes 2^{3/2} = 2^{(1/2) + (3/2)} = 2^{4/2} = 2^2 = 4
  • For the base a: a1/2imesa15/2=a(1/2)+(15/2)=a16/2=a8a^{1/2} imes a^{15/2} = a^{(1/2) + (15/2)} = a^{16/2} = a^8

The product of powers rule is a fundamental tool for combining like terms in algebraic expressions. By adding the exponents of terms with the same base, we can consolidate multiple terms into a single, simplified term.

5. The Grand Finale: The Simplified Expression

Having meticulously simplified each component, we can now assemble the final simplified expression. Combining the results from the previous steps, we have:

(2a)1/2imes(2a5)3/2=21/2imesa1/2imes23/2imesa15/2=4a8(2 a)^{1 / 2} imes (2 a^5)^{3 / 2} = 2^{1/2} imes a^{1/2} imes 2^{3/2} imes a^{15/2} = 4a^8

Therefore, the simplified form of the expression (2a)1/2imes(2a5)3/2(2 a)^{1 / 2} imes (2 a^5)^{3 / 2} is 4a84a^8. This final expression is more concise and easier to interpret than the original, demonstrating the power of algebraic simplification.

Keywords Decoded: A Clearer Understanding

Let's address the original expression and clarify its meaning. The expression (2a)1/2imes(2a5)3/2(2 a)^{1 / 2} imes (2 a^5)^{3 / 2} involves fractional exponents and algebraic terms. To simplify it, we need to understand the properties of exponents and how they apply to both constants and variables.

The core of the simplification lies in understanding fractional exponents, the power of a product rule, powers of powers, and the product of powers rule. These concepts, when applied systematically, lead to the simplified form of the expression.

Mastering the Art of Simplification: Practical Applications and Beyond

Simplifying expressions is not merely a mathematical exercise; it's a fundamental skill with wide-ranging applications across various fields. From physics and engineering to computer science and economics, the ability to manipulate and simplify mathematical expressions is crucial for problem-solving and analysis.

Real-World Relevance

In physics, simplifying equations allows us to model physical phenomena more effectively. For instance, simplifying equations related to motion, energy, or electromagnetism can provide deeper insights into the behavior of systems.

In engineering, simplified expressions are essential for designing structures, circuits, and algorithms. Engineers often work with complex equations, and simplification is crucial for making calculations tractable and optimizing designs.

Beyond the Classroom

The skill of simplification extends beyond academic and professional realms. In everyday life, we often encounter situations where simplifying complex information is beneficial. Whether it's breaking down a financial statement, understanding a complex contract, or making informed decisions, the ability to simplify and analyze information is invaluable.

Level Up Your Mathematical Prowess

Mastering the art of simplification requires practice and a deep understanding of mathematical principles. By consistently applying the rules of exponents, algebraic manipulation, and simplification techniques, you can enhance your mathematical prowess and tackle complex problems with confidence.

Conclusion: A Journey of Mathematical Discovery

Simplifying the expression (2a)1/2imes(2a5)3/2(2 a)^{1 / 2} imes (2 a^5)^{3 / 2} has been a journey of mathematical discovery. We've explored fractional exponents, the power of a product rule, powers of powers, and the product of powers rule. By applying these principles systematically, we've arrived at the simplified expression 4a84a^8.

This exploration highlights the elegance and power of mathematics. By understanding fundamental principles and practicing diligently, we can unlock the secrets of complex expressions and apply them to solve real-world problems. So, embrace the challenge, delve into the world of mathematics, and let the journey of discovery continue.