39=-1/4(x-40)(x+40)

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Solution for 39=-1/4(x-40)(x+40) equation: 



39=-1/4(x-40)(x+40)

We move all terms to the left:

39-(-1/4(x-40)(x+40))=0



Domain of the equation: 4(x-40)(x+40))!=0

x∈R



We use the square of the difference formula

x^2+1600+39=0

We add all the numbers together, and all the variables

x^2+1639=0

a = 1; b = 0; c = +1639;
Δ = b2-4ac
Δ = 02-4·1·1639
Δ = -6556
Delta is less than zero, so there is no solution for the equation

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