3x+70+x^2=180

Solution for 3x+70+x^2=180 equation:

3x+70+x^2=180

We move all terms to the left:

3x+70+x^2-(180)=0

We add all the numbers together, and all the variables

x^2+3x-110=0

a = 1; b = 3; c = -110;
Δ = b2-4ac
Δ = 32-4·1·(-110)
Δ = 449
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(3)-\sqrt{449}}{2*1}=\frac{-3-\sqrt{449}}{2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+\sqrt{449}}{2*1}=\frac{-3+\sqrt{449}}{2}
$