Which expression is equivalent to \(9x^6 - 63x^2\), where \(x > 0\)? | Ronan SAT

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Question

Prompt

Which expression is equivalent to

9 x^{6} - 63 x^{2}

, where

x > 0

?

9 (x^{3} - 7 x^{2})^{2}

A

x^{2} (9 x - 7)^{4}

B

9 x^{2} (x - 7)^{4}

C

9 x^{2} (x^{4} - 7)

D