X2+6x-7=0

Simple and best practice solution for X2+6x-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 X2+6x-7=0 equation:



X2+6X-7=0
We add all the numbers together, and all the variables
X^2+6X-7=0
a = 1; b = 6; c = -7;
Δ = b2-4ac
Δ = 62-4·1·(-7)
Δ = 64
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{64}=8$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-8}{2*1}=\frac{-14}{2} =-7 $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+8}{2*1}=\frac{2}{2} =1 $

See similar equations:

| 4*49-c^2=55 | | x-5/15=2/3 | | 4=1-11z | | 1/2(x/2+2)=2x-15/4 | | 1/2*(x/2+2)=2x-15/4 | | 2/3(x+4)=32 | | 75+15x=12x | | x/1+x/2+x/3+x/4=25 | | 7x/2-4=17 | | x+x/2+x/3+x/4=25 | | 2(4-3x)=3(4x+1) | | X²-4x+4=0 | | 10(y+9)/11=9(y-12)/10 | | 3x-2/3=5x-12 | | 9x-5=7x-39 | | -3(x+2)=5x=-9 | | 3(x-5)=4x-30 | | X2-4x+4=0 | | 2*3^2x/7=30 | | 2x+3=−1 | | 83+15x=12x | | 4x-2(x+5)=12 | | 4*(-3)+8y=12 | | 12x=4+15x | | 4+15x=12x | | 5600=x+4/5x | | -31q=-93 | | 5x-1/3=7x-4/4 | | 50=3t=7 | | 4(2x+4)=64 | | (x+5)^+5=41 | | 1/4y+2/3y=7/12y-1/6 |

Equations solver categories