SAT Math Practice Question #6325 - SATify | SATify

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SAT Math Practice Question #6325 - SATify | SATify

#6325

algebra

polynomials

expressions

simplification

operations

easy

30 sec

Calculator OK

Which expression is equivalent
to $(7 x^{3} + 7 x) - (6 x^{3} - 3 x)$ ?

A.

$x^{3} + 10 x$

B.

$- 13 x^{3} + 10 x$

C.

$- 13 x^{3} + 4 x$

D.

$x^{3} + 4 x$