If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8x^2-14x-9=0
a = 8; b = -14; c = -9;
Δ = b2-4ac
Δ = -142-4·8·(-9)
Δ = 484
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{484}=22$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-14)-22}{2*8}=\frac{-8}{16} =-1/2 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-14)+22}{2*8}=\frac{36}{16} =2+1/4 $
| 13.27=y-24.45 | | 2.1z=3 | | 162=180(x-2) | | 54=4u | | -6.8x=-14.28 | | (6x+29)+(3x+124)=118 | | −5x−5x+7+9=−7x−4x+2 | | 6+16/2*2=x | | 16x+800=21x+70 | | x+8.3=-3.5 | | 6(x-3)=2x+4-18 | | -2(w+9)=-22 | | b/2-4=11 | | 4x-30=28,90 | | 13-2x+3=4x-44 | | (2z-8)(3z+28)=0 | | 15x=9=96 | | (8x+7)+9x+16=40 | | 2v^2-17v+35=v-5 | | (6a-4)=4a+36 | | 6(a+3)=19+6a | | 7/10-6b=6 | | 18-6n=-4-4(n+3) | | (w-7)/6+(w+4)/5=11/5 | | Y=1.5^x | | 54=8+3x | | 24=-4a+8 | | 2x-11=8x-1 | | (2x^2)+4=-284 | | (x-2)+1=1 | | -5b+2b^2+5-7b^2=0 | | 3=b+112 |