If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x^2-3x-13=0
a = 2; b = -3; c = -13;
Δ = b2-4ac
Δ = -32-4·2·(-13)
Δ = 113
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{113}}{2*2}=\frac{3-\sqrt{113}}{4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+\sqrt{113}}{2*2}=\frac{3+\sqrt{113}}{4} $
| -5-5(8x)=0 | | 9x2+16=0 | | 4+3x=3x-2 | | 3÷5a-1÷5a-3=17 | | 16x-27=9x-6x | | x+15=1/2(3x+15) | | 19x-31=11x+1 | | 16-27=9x-6x | | 0.3x+14.9=32 | | n/5=8/14 | | 2/3(6n)=-4 | | 38=2w+8 | | 9(t+7)=99 | | 2p=3p | | 5/6k=1/2 | | 4=1.84^t | | 0,5(4x+1)+2(2-0,5)=(4,5-2,5x) | | 48+-64x=2x+4 | | 12+6=2r | | 2x-17=23 | | 16x-36=9x-5x | | x/6-2+x=0 | | c=3(11.4)-27 | | -25=-5/7w | | 2(-6x)*2x=3/4 | | 1=n-85/8 | | 4x-(74)=90 | | 6p+19=6p-3+5p+7 | | 1.5x−1.68=0.121.5x-1.68=0.12 | | x/6+x=0 | | 7(3y-2)=-3 | | 1 = n−85/8 |