2x2+3x-40=0

Simple and best practice solution for 2x2+3x-40=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 2x2+3x-40=0 equation: 



2x^2+3x-40=0

a = 2; b = 3; c = -40;
Δ = b2-4ac
Δ = 32-4·2·(-40)
Δ = 329
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{329}}{2*2}=\frac{-3-\sqrt{329}}{4}
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+\sqrt{329}}{2*2}=\frac{-3+\sqrt{329}}{4}
$

See similar equations:

| 94.4=8(m+3.4 | | 5x-10=55+35 | | 8x+2x-12=5(2x-2)-2 | | ⅔y=7 | | 12x-6x+186=12x+78 | | 14−2t=4.4 | | 65+(15x-4)+(4x+5)=180 | | 18-v=254 | | 2x-6=2x+8 | | x2-32x-320=0 | | 3x-7=94 | | 54-n=n | | 3×2w-7=3 | | -x/4+5.1=23.3 | | 5.x-14=-24 | | h()=-44 | | 5.x-14=24 | | (-32)=9v-5 | | 5x2/3=20 | | -2(6x-5)-3=-4x+15 | | -13d+12-7d=-17d-15 | | (-11)=5-8w | | 6y-4=7y+8 | | 20d+12=-17d-15 | | -6.2+c=-1.25 | | X/1.5=8.2y | | 2(9x-7)=7x+7 | | 5x+2=6x+4=12x-4 | | -2(3x+10)=4+(x-7) | | 19n−17n=12 | | 2x+45=3.5x-60 | | 6x-12=10x+8 |

Equations solver categories