x(x+8)=-4x^2-9

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Solution for x(x+8)=-4x^2-9 equation: 



x(x+8)=-4x^2-9

We move all terms to the left:

x(x+8)-(-4x^2-9)=0

We multiply parentheses

-(-4x^2-9)+x^2+8x=0

We get rid of parentheses

4x^2+x^2+8x+9=0

We add all the numbers together, and all the variables

5x^2+8x+9=0

a = 5; b = 8; c = +9;
Δ = b2-4ac
Δ = 82-4·5·9
Δ = -116
Delta is less than zero, so there is no solution for the equation

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