SAT Math Practice Question #14482 - SATify | SATify

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SAT Math Practice Question #14482 - SATify | SATify

#14482

algebra

expressions

medium

80 sec

If $r$ is a real number, which of the following is equivalent to $(1 - r) (1 + r + r^{2} + r^{3} + r^{4})$ ?

A.

$1 - r^{3}$

B.

$1 - r^{4}$

C.

$1 - r^{5}$

D.

$1 - r^{6}$