What is the sum of (x−5x2−12)

Question

and (4+11x−3x2)

Responses

4x2+6x−15
4 x squared plus 6 x minus 15

−2x2−10x−16
negative 2 x squared minus 10 x minus 16

8x2+12x−8
8 x squared plus 12 x minus 8

−8x2+12x−8

Answer 1

-8x2+12x−8