Question

Evaluate. -3^2-5(-3)-8

Answer 1

@dss08a

Answer 2

9+15-8

Answer 3

9+15-8 = 16

Answer 4

when you square a negative it comes out a positive. but when you cube it, it stays a negative. just use PEMDAS for these type of questions.

and screw you @abb0t

Answer 5

If this were (-3)^2 (noting parentheses), then it would become positive. (-3)^2 = 9
Because this has no parentheses, it would only apply to the 3 and thus: -3^2 = -9
It's akin to (-x)^2 vs. -x^2, (-x)^2 = (-1)^2 x^2 = x^2, but -x^2 the negative does not interact with the squared term (else y=-x^2 would look the same as y=x^2)

Answer 6

Thus we should obtain -9 + 15 - 8 = 15 - 17 = -2