If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-3x^2+90x=0
a = -3; b = 90; c = 0;
Δ = b2-4ac
Δ = 902-4·(-3)·0
Δ = 8100
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{8100}=90$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(90)-90}{2*-3}=\frac{-180}{-6} =+30 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(90)+90}{2*-3}=\frac{0}{-6} =0 $
| 5(2m+3)-2m=4(m-2)-1 | | 8-3(2x-6)=14x | | (2x)+(x+10)+110=540 | | t=−3,t2−2t−1 | | 3(x-1)-3=5x-2(1+x) | | 21-4p+4=9+4p | | 9(3n+5)=8(6n+5)+7 | | 13+2(x-5)=17 | | 24x+11=3(6x+2)+6x+5 | | 999x999=999 | | x+10-80=850 | | 3+x=39-2x+3+x=39-2x | | x+11-79=850 | | -2(4t-3)+6t=8t-5 | | -5(7x-6)+7=-35x+37 | | 6/4=n/6 | | 9x+15-4x-8=17 | | 12x-28-4x+8=4 | | z-675=1349 | | 13/26=n/2 | | 5x–9=2x+18 | | 1/1=2/n | | (2x)+(x+10)+110=180 | | x=(1.2)(60) | | x=(0.2)(60)+60 | | -4x^2+75x=0 | | x-7.5=`6.4 | | 0.12(y-2)+0.04y=0.20y-0.03(10) | | 7(2²+3x)=81 | | -6x-4=5x+10 | | 3+p=8=5 | | 8x+(-9)=5x-6 |