If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x^2+57x-90=0
a = 2; b = 57; c = -90;
Δ = b2-4ac
Δ = 572-4·2·(-90)
Δ = 3969
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{3969}=63$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(57)-63}{2*2}=\frac{-120}{4} =-30 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(57)+63}{2*2}=\frac{6}{4} =1+1/2 $
| 2x^2+52x-90=0 | | -2(y+1)=4y-6+2(4y+3) | | 4+2(2x-8)=-2(4x-3)+8x | | 4+2(2x-8)=-2(2x-3)+8x | | 28-5=2+2+3(x+3) | | x+5x16=372 | | -3=h/7 | | -6(-4x+3)-6x=4(x-7)-2 | | 2(-1)+5=x+6 | | 2^a=1/32 | | 8+x=-x | | 10-n=n-2 | | 4-v=v-6 | | 2x+3=3(2x+1) | | -15-4v=3v-1 | | 8x+4=-5+5x | | 7-8n=1-7n | | 7+6n=4n+1 | | 2x+8=8+4x | | 4+9=8+x | | 5(x-4)+2=-6(x-3) | | 2x+29=x-9 | | x+2x+29=x-9 | | 4x+0.8=4 | | a-(-4)=21 | | 6.7x(-2.3)=56 | | -2+b=-1 | | 15w+63=198 | | x+5(2x-1)+3=11x-2 | | 2x+4+3x+1=30 | | 4x-5(2x=1)=1x+-5 | | 0.5(x+2)=0.9x×0.2 |