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

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Solution for f(-2)=-(-2)^2+3(-2)-11 equation: 



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

We move all terms to the left:

f(-2)-(-(-2)^2+3(-2)-11)=0

We add all the numbers together, and all the variables

f(-2)+21=0

We multiply parentheses

-2f+21=0

We move all terms containing f to the left, all other terms to the right

-2f=-21

f=-21/-2

f=10+1/2

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