If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.81x^2+-0.9x+1=0
We add all the numbers together, and all the variables
0.81x^2-0.9x=0
a = 0.81; b = -0.9; c = 0;
Δ = b2-4ac
Δ = -0.92-4·0.81·0
Δ = 0.81
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-0.9)-\sqrt{0.81}}{2*0.81}=\frac{0.9-\sqrt{0.81}}{1.62} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-0.9)+\sqrt{0.81}}{2*0.81}=\frac{0.9+\sqrt{0.81}}{1.62} $
| 6(p-6)+2=4p-35 | | 8.25x=57.75 | | 16=7(3x-2)-6(3x-2) | | 9y-3(2y-5)=72 | | 30=-5h | | 5(v+6)-8v=18 | | 60+x+132=180 | | 14+4(q-8)=6q-15-2q | | 3x+45=7−2x | | 8x+6+12x+14=180 | | 1+5a=28 | | 6(g+3)=-2(g+7) | | 35=5f | | x+132+60=180 | | 11v+15v=-7+13v | | -22=7x+3-4 | | x+105+x+36=153 | | 32+35x=92+45x | | -162=6(-2-5x) | | -7z=77 | | 5(1-4a)+3=-112 | | 9x+4=3(3x+4) | | 5-2/4v=7 | | 162=6(-2-5x) | | 3/8-1/4t=1/2=-3/4 | | -2/7k-6=2 | | 5x+|6x-3|-3-x=4 | | 6x+x-10=25 | | -5(-7-2x)-3=112 | | -2/9*v=6 | | 15x+12x=50+95 | | 1.5-0.04x=-3.06 |