College

Which equation correctly shows that [tex]\left(x^3\right)^2=x^6[/tex]?

A. [tex]\left(x^3\right)^2=\left(x^3\right)\left(x^2\right)[/tex]

B. [tex]\left(x^3\right)^2=\left(x^3\right)\left(x^3\right)=x \cdot x \cdot x \cdot x \cdot x \cdot x=x^6[/tex]

C. [tex]2\left(x^3\right)=x^3+x^3=x^6[/tex]

Answer :

To determine which equation correctly shows that
[tex]$$
\left(x^3\right)^2 = x^6,
$$[/tex]
let's use the exponent rules.

1. According to the power of a power rule, if you have [tex]$\left(x^a\right)^b$[/tex], this is equal to [tex]$x^{a \cdot b}$[/tex]. Thus,
[tex]$$
\left(x^3\right)^2 = x^{3 \cdot 2} = x^6.
$$[/tex]

2. Another way to see this is by writing
[tex]$$
\left(x^3\right)^2 = x^3 \cdot x^3.
$$[/tex]
When multiplying with the same base, you add the exponents:
[tex]$$
x^3 \cdot x^3 = x^{3+3} = x^6.
$$[/tex]

3. Option B shows these steps by expressing [tex]$\left(x^3\right)^2$[/tex] as [tex]$x^3 \cdot x^3$[/tex], which then results in [tex]$x^6$[/tex] when written out as [tex]$x\cdot x\cdot x\cdot x\cdot x\cdot x$[/tex].

Thus, the equation in Option B correctly demonstrates that
[tex]$$
\left(x^3\right)^2 = x^6.
$$[/tex]

The correct answer is Option B.