Answer:
11
Step-by-step explanation:
3(1)+8
3(1)=3
3+8 =11
8
Because -7 - 1 is 8
Mark brainliest please
X cannot equal +2, and can't be -1. If you factor it, then you notice you get 2(x+2)(x-2). If you use either one for the x, one will be zero and the won't, and vise-versa.