X^2+3x-2=30

Solution for X^2+3x-2=30 equation:

X^2+3X-2=30

We move all terms to the left:

X^2+3X-2-(30)=0

We add all the numbers together, and all the variables

X^2+3X-32=0

a = 1; b = 3; c = -32;
Δ = b2-4ac
Δ = 32-4·1·(-32)
Δ = 137
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{137}}{2*1}=\frac{-3-\sqrt{137}}{2}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+\sqrt{137}}{2*1}=\frac{-3+\sqrt{137}}{2}
$