W=(x-7)(x+7)

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Solution for W=(x-7)(x+7) equation: 



=(W-7)(W+7)

We move all terms to the left:

-((W-7)(W+7))=0

We use the square of the difference formula

W^2+49=0

a = 1; b = 0; c = +49;
Δ = b2-4ac
Δ = 02-4·1·49
Δ = -196
Delta is less than zero, so there is no solution for the equation

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