Question

-4^2+6

I got 22 but the book said the answer is -10?

Answer 1

-4^2 is not 16 because you square 4 first, then you make it negative

Answer 2

you are thinking of (-4)^2

Answer 3

so it should be this

-4^2+6

-16+6

-10

Answer 4

oh, ok thank you!

Answer 5

the best way to think of it is to think of -4^2 as -1*4^2

PEMDAS says to do exponents first, then multiplication, so

-1*4^2 = -1*16 = -16

if you use parenthesis to change the order of operations, you get

(-1*4)^2 = (-4)^2 = (-4)*(-4) = 16

Answer 6

yw

Answer 7

got it

Answer 8

ok great