9x(x+4)=-72

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Solution for 9x(x+4)=-72 equation: 



9x(x+4)=-72

We move all terms to the left:

9x(x+4)-(-72)=0

We add all the numbers together, and all the variables

9x(x+4)+72=0

We multiply parentheses

9x^2+36x+72=0

a = 9; b = 36; c = +72;
Δ = b2-4ac
Δ = 362-4·9·72
Δ = -1296
Delta is less than zero, so there is no solution for the equation

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