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7x+x^2=-36
We move all terms to the left:
7x+x^2-(-36)=0
We add all the numbers together, and all the variables
x^2+7x+36=0
a = 1; b = 7; c = +36;
Δ = b2-4ac
Δ = 72-4·1·36
Δ = -95
Delta is less than zero, so there is no solution for the equation
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