2x2+3x-5=0.

Simple and best practice solution for 2x2+3x-5=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-5=0. equation: 



2x^2+3x-5=0.

a = 2; b = 3; c = -5;
Δ = b2-4ac
Δ = 32-4·2·(-5)
Δ = 49
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{49}=7$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(3)-7}{2*2}=\frac{-10}{4}
=-2+1/2
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+7}{2*2}=\frac{4}{4}
=1
$

See similar equations:

| 3x2-2x-7=0 | | 6x2+5x-16=0, | | 2x-10+x+20=180 | | x2+5x+3=0, | | x^2+5x+3=0, | | 4x2-3x+5=0, | | 2x+14=5x+38 | | 2(y-3)+4=5y+2y | | y/3.2=9.6 | | 4n-12=-4n+12 | | 4c+5=2(2c-1) | | x^2=3,46 | | r^2-20r=31 | | 2x+3=8x+38 | | H(t)=-16t+60t+45 | | -2w-5w+9=9-7w | | -x+14x-3=10 | | 13x+85-11=8x-26 | | 14=2(h-5)+4h | | 100x2=x | | 4x+12x=120 | | Y^2+16y+33=0 | | 14y-3y+1=34 | | -283=-7(-5-7n)+4n | | 20+5x=50+10x | | 3x-2-6x=12+4x-3 | | -4(1-8x)+5x=144 | | P^2-30p=29 | | -7(1-7x)=336 | | 2(7r+4)+4r=-136 | | -5+v2=15 | | 2(7r+4)+r=-136 |

Equations solver categories