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(x+-13)(x+-13)=-13
We move all terms to the left:
(x+-13)(x+-13)-(-13)=0
We add all the numbers together, and all the variables
(x-13)(x-13)-(-13)=0
We add all the numbers together, and all the variables
(x-13)(x-13)+13=0
We multiply parentheses ..
(+x^2-13x-13x+169)+13=0
We get rid of parentheses
x^2-13x-13x+169+13=0
We add all the numbers together, and all the variables
x^2-26x+182=0
a = 1; b = -26; c = +182;
Δ = b2-4ac
Δ = -262-4·1·182
Δ = -52
Delta is less than zero, so there is no solution for the equation
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