Question

Solve problems #4 and #5, show each step

( 20 points )

Answer 1

4.
2(-2)^2=8
-4(-2)(4)=32
2(4)=8

8-32+8=-16


5.
-1^2=-1
(2(-1)-5(-2))=8
4(-2)=-8

-1-8+8=-1