If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x2+115x-42000=0
We add all the numbers together, and all the variables
x^2+115x-42000=0
a = 1; b = 115; c = -42000;
Δ = b2-4ac
Δ = 1152-4·1·(-42000)
Δ = 181225
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{181225}=\sqrt{25*7249}=\sqrt{25}*\sqrt{7249}=5\sqrt{7249}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(115)-5\sqrt{7249}}{2*1}=\frac{-115-5\sqrt{7249}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(115)+5\sqrt{7249}}{2*1}=\frac{-115+5\sqrt{7249}}{2} $
| 3z-6+6=-24+6 | | 7112=c-38 | | Y-10=7(x+1) | | 20k+60=40k+100 | | 6+5(x+-7)=71 | | 32x1/3=-18x1/3 | | 4x+3=5x-22+25 | | 7x-118=3x-10 | | 3x+-2=148 | | 2x^2+15=-35 | | x(4x-1)=105 | | 18/y-6=12 | | -9+x=-20 | | 7^2x/7^2x=49 | | 3x+-2=2.5 | | 10x-91=69 | | d-(-10)=8 | | 3z-6=-24 | | -7m+2=3+3m | | 11.3-p2.8=1.5 | | 40c=720 | | 5^(3x-1)=17 | | 14h-9-24h=15-3h-10 | | 2p-1=-3 | | -4(x-2)=2(x+4)-6x | | 4/5=−4c+4/1 | | 5/1-x=3x | | 320=-10(6x+4) | | 4/5=−4c+4/1 | | 4y-y/6=6 | | 40x^=640 | | 20-x/3=72 |