College

Which of the following is equivalent to [tex]\left(4x^2\right)^3[/tex]?

A. [tex]64x^8[/tex]
B. [tex]64x^6[/tex]
C. [tex]12x^6[/tex]
D. [tex]12x^5[/tex]
E. [tex]4x^6[/tex]

Answer :

To simplify the expression [tex]\((4x^2)^3\)[/tex], we can use the rules of exponents. Here's a step-by-step solution:

1. Identify the Components: The expression inside the parentheses is [tex]\(4x^2\)[/tex], and it is being raised to the power of 3.

2. Apply the Power Rule: According to the power rule for exponents [tex]\((a^m)^n = a^{m \cdot n}\)[/tex], we need to apply the exponent to both the coefficient and the variable inside the parentheses.

3. Simplify the Coefficient:
- Start with the coefficient 4.
- Raise 4 to the power of 3: [tex]\(4^3 = 4 \times 4 \times 4 = 64\)[/tex].

4. Simplify the Variable:
- The variable part is [tex]\(x^2\)[/tex].
- Apply the power of 3 to [tex]\(x^2\)[/tex]: [tex]\((x^2)^3\)[/tex].
- Using the power rule again, [tex]\((x^2)^3 = x^{2 \times 3} = x^6\)[/tex].

5. Combine the Results:
- Combine the simplified coefficient and the variable: [tex]\(64x^6\)[/tex].

Therefore, the expression [tex]\((4x^2)^3\)[/tex] simplifies to [tex]\(64x^6\)[/tex].

So, the equivalent expression is [tex]\(64x^6\)[/tex], which matches the second option in the list of choices.