If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-x^2-9x+14=0
We add all the numbers together, and all the variables
-1x^2-9x+14=0
a = -1; b = -9; c = +14;
Δ = b2-4ac
Δ = -92-4·(-1)·14
Δ = 137
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{-(-9)-\sqrt{137}}{2*-1}=\frac{9-\sqrt{137}}{-2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+\sqrt{137}}{2*-1}=\frac{9+\sqrt{137}}{-2} $
| |2x-1|=3x-2 | | 14=4m-2 | | 1.68t^2+8.68t-142.2=0 | | 20x^2+8x-96=0 | | 1.68t^2+6t-142.2=0 | | 2m+4=46 | | 54x-216=1458 | | 4.2+11.7-7.3x=2.1 | | -5=1/5*3+b | | 4n-6=2n+14 | | 1/5y-3=y | | 8x+7=7x+31 | | (2x+2+X)2=154 | | 1000^4=10^x | | A=2}r2 | | √(5x-2)=√12x | | 5p-11=4(6) | | 17850=x+0.19x | | 24.8=n+5.1 | | 5t^2-2t-1=0 | | 5^x²-3x+2=1 | | (-t)/(3t-8)=1/4 | | .05x=4000 | | w+5=29 | | 9x-9+8x-15=180 | | 23x+138=253 | | 8x+7=7(2+x) | | x+144=x+24 | | 9x^2–4=7x | | –8p–15=65 | | x/3+8=x/7-4 | | –23=s–16 |