h(-1)=5-7(-1)^2

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Solution for h(-1)=5-7(-1)^2 equation: 



h(-1)=5-7(-1)^2

We move all terms to the left:

h(-1)-(5-7(-1)^2)=0

We add all the numbers together, and all the variables

h(-1)+2=0

We multiply parentheses

-1h+2=0

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

-h=-2

h=-2/-1

h=+2

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