If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2-10.5x+10.5=0
a = 1; b = -10.5; c = +10.5;
Δ = b2-4ac
Δ = -10.52-4·1·10.5
Δ = 68.25
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{-(-10.5)-\sqrt{68.25}}{2*1}=\frac{10.5-\sqrt{68.25}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-10.5)+\sqrt{68.25}}{2*1}=\frac{10.5+\sqrt{68.25}}{2} $
| X2+72x-225=0 | | (9x+1)8=8x+72 | | 4(2a=6) | | 21=3d-6 | | 5+4n=5n | | (12/18)+(1/18)r=1 | | x+10=5x-60 | | 16x+43=17 | | 7m-2(2+m)=5m-(m-4) | | 403*x=1463 | | 209*x=5000000 | | 7r+7=5r-7 | | 2t-3=t+2 | | -35/11=-49/88q | | 2d-20=-6 | | 7a+4=a+18 | | -3/14×x=5/12 | | 13x+20=12x | | 3.07+x=3.5 | | 2*x=5000000 | | 4x-9=11+2x | | a^2-2a=10 | | -4x-14=8 | | f/5-2=8 | | x+(18x/100)=2460960 | | 3f+4–=2f+6 | | 3x/10=21 | | a/5+15=50 | | x-(10x/100)=2214864 | | 13.74=x+4x+(x-58) | | 0.5x3=15 | | 11x+24=5x+168 |