3x+6=5x2

Solution for 3x+6=5x2 equation:

3x+6=5x^2

We move all terms to the left:

3x+6-(5x^2)=0

determiningTheFunctionDomain
-5x^2+3x+6=0

a = -5; b = 3; c = +6;
Δ = b2-4ac
Δ = 32-4·(-5)·6
Δ = 129
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{129}}{2*-5}=\frac{-3-\sqrt{129}}{-10}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+\sqrt{129}}{2*-5}=\frac{-3+\sqrt{129}}{-10}
$