X^(2)-6x-7=0

Simple and best practice solution for X^(2)-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 X^(2)-6x-7=0 equation: 



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{-2}{2}
=-1
$


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

See similar equations:

| |3x-8|=12 | | -400=-8(1-7p) | | W^2-6w=-20-5w | | (6-z)(2z+7)=0 | | 82=6x+20 | | 5x-14=8x+12 | | 98-34x=16x-2 | | 8v^-4/5=4 | | p=1/2+9/8Q=13 | | 4x²+40x-44=0 | | 5x-10=28 | | p=1/2+9/8 | | 56=2x-12 | | 2(-5x+7)=10x+22 | | 34+16x-2=98 | | 5=6x+9 | | 16x-2+34x=98 | | 150+2x+10=17x+10 | | 85=5x-20 | | 9-4b=-27 | | 5x+5=4x+19 | | 142=3x+8 | | 12x+2+6x=92 | | 9x+21+28=14x-6 | | 3x+8=142 | | 0.5x+4/1.2x+8=5/3 | | 1/3(6x-3)=1/4(8-4x) | | Y²-14y-32=0 | | x*1.5=100+x | | x*1.46=100+x | | 6x+12=-12+6 | | 4p-22=2(2p+3) |

Equations solver categories