If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x^2-5x-90=0
a = 3; b = -5; c = -90;
Δ = b2-4ac
Δ = -52-4·3·(-90)
Δ = 1105
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{-(-5)-\sqrt{1105}}{2*3}=\frac{5-\sqrt{1105}}{6} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{1105}}{2*3}=\frac{5+\sqrt{1105}}{6} $
| 5x-1=-2(x+10) | | 1/6(36-54a)=1/3(-27a+18) | | -1/4(72-28a)=0.8(9a-20 | | x+3/4+5(4x+3)/3=3(4x+3)/12-7/2 | | 5^(x-1)=12 | | 75+x*24=2568 | | x1+x2+x3+x4-1=0 | | 1-7x=5-4x | | x=(22-2x)*(14-2x)*(x) | | l=180/3.28 | | m/0.89=3488 | | 1-(4-6x)=6x | | -3q^2-15q+12=0 | | a=5100(1+.09*360) | | a=5100(1+.09*12) | | p=2*64+2*84 | | 0.83x=0.5x+0.66 | | p=2(64)+2(84) | | 5/6x=1/2x+2/3 | | 2.5x-5=1.5x+10 | | 12x-28=8+12 | | 13x.28=8+12 | | 7x+2=5x+26 | | 5x-3.5=4x+5.5 | | 7x.18=5x+8 | | 36=w/5+10 | | w/3-15=19 | | F(x-1)=5x^2-7x-1 | | 71=120-(15+x+7.50 | | 5(4b=13=225 | | 2(2)-9(3x)=4 | | 2(3-4x)=5+7x |