SAT Math Practice Question #31379 - SATify | SATify

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SAT Math Practice Question #31379 - SATify | SATify

#31379

expressions

algebra

medium

60 sec

Which of the following expressions is equivalent to $(\frac{1}{2} a^{2} - \frac{3}{4} a + 1) - (\frac{1}{4} a^{2} + \frac{1}{2} a - 2)$ ?

A.

$\frac{1}{4} a^{2} - \frac{1}{4} a - 1$

B.

$\frac{1}{4} a^{2} - \frac{5}{4} a + 3$

C.

$\frac{3}{4} a^{2} - \frac{1}{4} a - 1$

D.

$\frac{3}{4} a^{2} - \frac{5}{4} a + 3$