If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2-2x-0.91=0
a = 1; b = -2; c = -0.91;
Δ = b2-4ac
Δ = -22-4·1·(-0.91)
Δ = 7.64
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{-(-2)-\sqrt{7.64}}{2*1}=\frac{2-\sqrt{7.64}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+\sqrt{7.64}}{2*1}=\frac{2+\sqrt{7.64}}{2} $
| 32=2x+2(3x-4) | | x^2+2x-0.91=0 | | −7x2+5=10 | | 6x(5x-2)+12=30 | | 9y-24=3y | | 2x+24+x+18=14+11 | | 7x|10=6 | | 10+2+x+5=5x-3 | | 7x*10=6 | | x2-4x+16=0 | | -5(n+1)=-6(4+4n | | 14-4z=2(17-5) | | 3y+270=0 | | 24+x+2x+29=17 | | x2+6x+12=0 | | -19=36+5x | | -6=-2x=18 | | 153=43-11x | | 4x^+4x-5=-30 | | 12x+7=10x+25 | | 8x-5=3-16x | | 5y^2+4y+28=0 | | 6(x-1)+1=-35 | | 13.75+x=20.80 | | 8x-42=x-7 | | 78=2x+4(2x+7) | | 629625x^2+934200x+113566392000=0 | | -x^+3=2x | | 5x+2(2x-5)=-37 | | 12=36/x | | 7p-6=3p+10 | | 13x2+20x+-92=0 |