Question

If p=-2,find the value of.a)p2-2p-100,b)-p2+4p+7​

Answer 1

Step-by-step explanation:

a) (-2)²-(2×-2)-100)

4-(-4)-100

4+4-100

8-100

-92

b) -(-2)²+4×-2+7

-4 -8+7

-5