Question

Evaluate. What is -6*a^2+4*b if a = -3 and b = 4

Answer 1

-38

Explanation:

Say we plug in the given values, the equation becomes -6*-3^2+4*4

using PEMDAS we solve for the exponent, -3^2, which becomes 9.

then we multiply, so we have 9 times -6, which equals -54

then we have 4 times 4 which is 16

-54 plus 16 equals -38