Which expression is equivalent to $(9x^2 + 9) - (2x^2)$? | Ronan SAT

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Question

Prompt

Which expression is equivalent to

(9 x^{2} + 9) - (2 x^{2})

?

16

A

11 x^{2} + 9

B

7 x^{2} - 9

C

7 x^{2} + 9

D