7n^2-9=-25

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Solution for 7n^2-9=-25 equation: 



7n^2-9=-25

We move all terms to the left:

7n^2-9-(-25)=0

We add all the numbers together, and all the variables

7n^2+16=0

a = 7; b = 0; c = +16;
Δ = b2-4ac
Δ = 02-4·7·16
Δ = -448
Delta is less than zero, so there is no solution for the equation

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