f2+89=64

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Solution for f2+89=64 equation: 



f2+89=64

We move all terms to the left:

f2+89-(64)=0

We add all the numbers together, and all the variables

f^2+25=0

a = 1; b = 0; c = +25;
Δ = b2-4ac
Δ = 02-4·1·25
Δ = -100
Delta is less than zero, so there is no solution for the equation

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