If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x(x-7)=18-x
We move all terms to the left:
2x(x-7)-(18-x)=0
We add all the numbers together, and all the variables
2x(x-7)-(-1x+18)=0
We multiply parentheses
2x^2-14x-(-1x+18)=0
We get rid of parentheses
2x^2-14x+1x-18=0
We add all the numbers together, and all the variables
2x^2-13x-18=0
a = 2; b = -13; c = -18;
Δ = b2-4ac
Δ = -132-4·2·(-18)
Δ = 313
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{-(-13)-\sqrt{313}}{2*2}=\frac{13-\sqrt{313}}{4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-13)+\sqrt{313}}{2*2}=\frac{13+\sqrt{313}}{4} $
| 3^7x=17-x-2 | | 4(w+3)+7w=–9 | | 10c=14.71 | | X/15=12/y | | 8n=152 | | b+35=65 | | r-15=77 | | 420=15x+x^2 | | -6(3a-7=21 | | 10+y=122 | | 16x+6=150 | | 0=-90*t+1080 | | 3x^2-3x-1296=0 | | 5x-2(50)=20x | | 10=-2/3(9+12b) | | -11=n-5-3 | | 5x-100=20x | | 19=+(x-50)+90 | | 4h*h=484 | | 2h+50=144 | | 20m+100=460 | | 5=6x=78 | | 1/5+6x=78 | | 7a-9a=23 | | 3x-1)2=0 | | 8.06a+7.02=18.4 | | 13+3(3x+8)=×-3 | | 5y=2y+9= | | 7v+8=19 | | 9/n=3/4/3 | | -20b-6=-14 | | 4+3.5s=8 |