Evaluate -a – 12a^2 for a = -1 a. -13 b. 13 c.-11

Question

Evaluate -a – 12a^2 for a = -1

a. -13
b. 13
c.-11

0

Answers ( No )

    0
    2021-09-14T19:30:15+00:00

    C

    substitute a = – 1 into the expression

    – (- 1) – 12(- 1)² = 1 – (12 × 1 ) = 1 – 12 = – 11 → C

    0
    2021-09-14T19:30:28+00:00

    c because PEMDAS start with the exponents so (-1)^2 =1 times -12=-12 and –1=1 so we end up with 1-12 or -11 which is C

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