If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x^2-17x-16=0
a = 2; b = -17; c = -16;
Δ = b2-4ac
Δ = -172-4·2·(-16)
Δ = 417
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{-(-17)-\sqrt{417}}{2*2}=\frac{17-\sqrt{417}}{4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-17)+\sqrt{417}}{2*2}=\frac{17+\sqrt{417}}{4} $
| -2x(x+5)+15=20 | | h+h·0,10·1/12+h·0,12·1/12=49.770,45 | | 61/2(4z+1/4)=2(z+1/16) | | 4x3+0,00016x2-3,1610-11=0 | | 5000*0,05*x= | | 5t-9/4=2-t/6 | | (5t-9)/4=2-t/6 | | 3^(2x+1)=1000 | | 2(3x-5)=4x-20 | | x3+3x+-76=0 | | -42x^2-13x+1=0 | | 20*12*x=1000000 | | -20p-12=7p-28 | | x/2-13=4 | | 4x+5/2=3 | | 23x=7x-16 | | 5x=6=-78-7x | | 3(5x-2)=9x+6 | | 2/3g=36 | | 8x–4=10 | | 2r+8=5r-6 | | 5/8c-3=7 | | 1/8b=24 | | 3=77x=33x+39 | | 0.4b-6=0.2b | | -16=2x=-32=8x | | 4x=12=-65-7x | | -2n=4(1/3) | | 22/6-9y=11 | | a4/4+3=15 | | 49x+6*7x-7=0 | | 5+x+7=2x |