If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7x^2-9x=0
a = 7; b = -9; c = 0;
Δ = b2-4ac
Δ = -92-4·7·0
Δ = 81
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{81}=9$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-9)-9}{2*7}=\frac{0}{14} =0 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+9}{2*7}=\frac{18}{14} =1+2/7 $
| 9x-12+12x-18=18x+9 | | 5x^2(9x^2+24x+7)=0 | | 3b+5=17+15 | | 2/3-7/3=2/5v+6/5v | | 0.03x+0.05(1000-x)=43 | | -16,-4m=1/2 | | 9=0.3h | | 2x+×=25 | | 4x-5+5x=5x+4 | | 2x-6x+2=x-3+5 | | -3/5-3/5=4/7v+2/7v | | 3x/5+3/5=2x-5 | | (4a-33)=(2a=15) | | 1/2(12x-10)+3x=67 | | 1/3x+11=x-7 | | -3(3+2x)=27 | | 3x+14+10x-11=14x-9 | | 5=-16t^2+126t | | -4(3x+9)=-108 | | 7x+5x-6=13x-14 | | 9x-7+2x-1=-63 | | (6•r)•7=0 | | .05x+.25(-x+75)=10.55 | | x+9+5x-10=8x-17 | | x+4(-x+8)=23 | | 9x+3x+2=17x-3 | | 3x-36+2x+16=180 | | 3x-36+2x+16=18- | | x+0.25x+x0.07=10650 | | (2x-8)(x)=120 | | x+0.25x+x0.7=106500 | | 3x-2(2x-11)=15 |