Loading web-font TeX/Math/Italic

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:

| u2+6u+12=0 | | (3/4)*(3+2x)+1=13 | | 3c^2-2c-32=0 | | u^2+6u+12=0 | | 3/4(3+2x)+1=13 | | 2a+2=-3+12 | | 2(w+3)=-6(w+7) | | -3v-5(v-8)=7(12-8v)+4v | | 61=23^x | | 2=2+6-2x | | 4x^-9x-100=0 | | Y^2-60+12y=0 | | 2(w+3)=-6(w+7 | | 1/2y+5−3/4y=0 | | 0.75x+0.2x=x-3.5 | | -3=x+x+1+x+2 | | 3|2x+1|=12 | | -2x+4=4x-1 | | 45(p^2-1)=56 | | -(1-3p)=-(1+6p) | | 1/3+k=7/3 | | 3y2+6y–6=0 | | -8x-x+5=-6x+5=3 | | 3x³+21x+30=0 | | 0=|x-1|-2 | | -12-3s=7s+18 | | 2a-14=3(a+1)+18a+3 | | 3/2y=36 | | X+15x=21500 | | -8-5(6n+11)=3(-n+6) | | 0.25q+0.10(2q+6)=10.95 | | 7/5p=-12/9 |

Equations solver categories