If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y^2-7y-22=0
a = 1; b = -7; c = -22;
Δ = b2-4ac
Δ = -72-4·1·(-22)
Δ = 137
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-\sqrt{137}}{2*1}=\frac{7-\sqrt{137}}{2} $$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{137}}{2*1}=\frac{7+\sqrt{137}}{2} $
| x-2x-6=2x-3x-6 | | 3^(x-5)=11 | | 64n2=1 | | -5x-8(-1.6x+3.4)=17 | | b-6,1/6=10,7/8 | | 27x-2=25x+6 | | 3^x-5=11 | | 4+21=x+4x | | 7.1-x=4.9 | | 14x(8x)=7(16) | | 32=4r+12 | | -5x+6+x=6x+11 | | x+1,1/2=3 | | -2x+1-2x=-2x+3x-3 | | 3x-15-16=2x-16+4 | | +6n-4=+4n+4 | | 7x+2+8x=4x+7 | | +5.94n-3.96=+4n+4 | | 2x+2=2(x-3) | | 3n-4=2n-2 | | 877.04/0.76=x | | x*18=11 | | 877.04=x-0.24x | | 3(2x-6)+4=5(x+4)-9 | | n-12,1/9=13,4/5 | | 12·81^x+11·9^x=36 | | (3x+17)=(2x+29) | | n-121/9=134/5 | | 7y-4=4y*8-6-64 | | 2/3+x=8/9 | | 7+6z=-9−10z | | -5(x-4)+6x-19=3 |