Question

REALLY NEED HELP CAUSE BEEN STUCK

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Answer 1

-29

-7

Explanation:

f(-2)=-2-(-2)²+(-2)-8

=-2(4)-2-8

=-8-2-8

f(-2)=-18

f(3)=-2(3)+(3)-8

=-6+3-8

f(3)=-11

f(-2)+f(3)=-18+(-11)

=-18-11

f(-2)+f(-3)=-29

f(-2)-f(3)=-18-(-11)

=-18+11

f(-2)-f(3)=-7

Answer 2

Substitute the values inside the brackets for x and solve. For example with f(-2) use x=-2