2x2+3x=5.9

Solution for 2x2+3x=5.9 equation:

2x^2+3x=5.9

We move all terms to the left:

2x^2+3x-(5.9)=0

We add all the numbers together, and all the variables

2x^2+3x-5.9=0

a = 2; b = 3; c = -5.9;
Δ = b2-4ac
Δ = 32-4·2·(-5.9)
Δ = 56.2
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{56.2}}{2*2}=\frac{-3-\sqrt{56.2}}{4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+\sqrt{56.2}}{2*2}=\frac{-3+\sqrt{56.2}}{4}
$