231=(x-13)(x+13)

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Solution for 231=(x-13)(x+13) equation: 



231=(x-13)(x+13)

We move all terms to the left:

231-((x-13)(x+13))=0

We use the square of the difference formula

x^2+169+231=0

We add all the numbers together, and all the variables

x^2+400=0

a = 1; b = 0; c = +400;
Δ = b2-4ac
Δ = 02-4·1·400
Δ = -1600
Delta is less than zero, so there is no solution for the equation

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