2x(x+8)=x=180

Solution for 2x(x+8)=x=180 equation:

2x(x+8)=x=180

We move all terms to the left:

2x(x+8)-(x)=0

We add all the numbers together, and all the variables

-1x+2x(x+8)=0

We multiply parentheses

2x^2-1x+16x=0

We add all the numbers together, and all the variables

2x^2+15x=0

a = 2; b = 15; c = 0;
Δ = b2-4ac
Δ = 152-4·2·0
Δ = 225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{225}=15$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(15)-15}{2*2}=\frac{-30}{4}
=-7+1/2
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(15)+15}{2*2}=\frac{0}{4}
=0
$