11x2-7x-7=0

Simple and best practice solution for 11x2-7x-7=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 11x2-7x-7=0 equation:



11x^2-7x-7=0
a = 11; b = -7; c = -7;
Δ = b2-4ac
Δ = -72-4·11·(-7)
Δ = 357
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{-(-7)-\sqrt{357}}{2*11}=\frac{7-\sqrt{357}}{22} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{357}}{2*11}=\frac{7+\sqrt{357}}{22} $

See similar equations:

| 14x2-11x+16=0 | | x2-x-17=0 | | 14x2-3x+6=0 | | 4x2-14x-9=0 | | 11x2-11x-3=0 | | 14x2+4x-13=0 | | 16x2+13x+6=0 | | 6x=48= | | 5y^2+14y-8=0 | | 6x^2-31x+15=0 | | 3x(2x+5)=15 | | x2+11x+34=4 | | -5+3f=7 | | -4-3(4x+2)=3(5-2x)+1 | | 2x/3-x/3=x/4+3/2 | | n/2+n/3=35-n+30/5 | | 3(3x+5)+5(2x-9)=3(4x-3)-15 | | 5n-4/5=20 | | 2p-1=p+12 | | 10b+10=-5+7b | | 84x-17x-67=0 | | 3x+12=7-40 | | -7t=-8t-3 | | x/10+(x+8)/2=2x/5+5 | | 9y-5=24 | | x^2+16x+260=0 | | -50=-10+-2x | | 36/d=60d= | | 180=8x-5+10x+5 | | 8+3x=-4x+1 | | 7+4x=9x+5 | | 2.07+24+x=33.03 |

Equations solver categories