9x^2+14x=-3

Solution for 9x^2+14x=-3 equation:

9x^2+14x=-3

We move all terms to the left:

9x^2+14x-(-3)=0

We add all the numbers together, and all the variables

9x^2+14x+3=0

a = 9; b = 14; c = +3;
Δ = b2-4ac
Δ = 142-4·9·3
Δ = 88
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{88}=\sqrt{4*22}=\sqrt{4}*\sqrt{22}=2\sqrt{22}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(14)-2\sqrt{22}}{2*9}=\frac{-14-2\sqrt{22}}{18}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(14)+2\sqrt{22}}{2*9}=\frac{-14+2\sqrt{22}}{18}
$