15x2+13x-6=0

Simple and best practice solution for 15x2+13x-6=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 15x2+13x-6=0 equation:



15x^2+13x-6=0
a = 15; b = 13; c = -6;
Δ = b2-4ac
Δ = 132-4·15·(-6)
Δ = 529
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{529}=23$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(13)-23}{2*15}=\frac{-36}{30} =-1+1/5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(13)+23}{2*15}=\frac{10}{30} =1/3 $

See similar equations:

| 5x2-7x-2=0 | | 11x2-19x+9=0 | | 3x2-18x+5=0 | | 6x2-18x+20=0 | | 17x2+12x+3=0 | | 3x2-17x-2=0 | | 15x2-11x-13=0 | | 14x2+x-9=0 | | 7x2+15x-7=0 | | 17x2-20x-16=0 | | 20x2+5x-10=0 | | 13x2+7x-9=0 | | 16x2+7x-2=0 | | 18x2-6x+9=0 | | 20x2-2x+1=0 | | 4x2-19x-11=0 | | 17x2-18x+12=0 | | x2+7x+17=0 | | 4x2+11x-5=0 | | 14x2-18x-14=0 | | 19x2+3x-9=0 | | 13x2+7x-19=0 | | 7x2+8x-14=0 | | (p+11)/7=4 | | 16x2-14x-9=0 | | 26-6y+5=23 | | 17x2-3x+3=0 | | 6x2-12x-8=0 | | 19x2+10x-4=0 | | 2x2+8x-13=0 | | 5=25/(1.08)^x | | 5y-1/3+7=15 |

Equations solver categories