If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8x^2-8x-2.5=0
a = 8; b = -8; c = -2.5;
Δ = b2-4ac
Δ = -82-4·8·(-2.5)
Δ = 144
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{144}=12$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-8)-12}{2*8}=\frac{-4}{16} =-1/4 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-8)+12}{2*8}=\frac{20}{16} =1+1/4 $
| 66=5u−4 | | 8(m+2)=80 | | 2=4-0.35x | | 25+0.15m=18.50+0.10m | | u+15/2=13 | | -9y+17=-3+16y | | 25+0.15x=18.50+0.10 | | 10y-3=8y-3+2y | | 8n=47 | | x-7(x+2)=22 | | -16x+8=20x+24 | | -2b-3b=10 | | 1/3(x+6=2/3(x-9) | | Y=3(x+5)(x-2 | | 3b-3+6=3 | | 3b-3=6=3 | | 10x+12=3x+15 | | Y+10x=345 | | -15+7.5(2d-1)=15 | | 5=z÷(-4)-3 | | 3(5z-7)=-4(-10z+14) | | -3b-b=-4 | | -3-b=-4 | | 1+8x−5x=−23 | | (4x2.25)-2=7 | | v-6.7=2.9 | | 3(2b-3)-3(6-7)-12=0 | | 4x2.25-2=7 | | y-2.2=7.19 | | 4x2.25-4=7 | | y-22=7.19 | | x+4.9=7.61 |