x^2-2x-8=4x-17

Simple and best practice solution for x^2-2x-8=4x-17 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^2-2x-8=4x-17 equation: 



x^2-2x-8=4x-17

We move all terms to the left:

x^2-2x-8-(4x-17)=0

We get rid of parentheses

x^2-2x-4x+17-8=0

We add all the numbers together, and all the variables

x^2-6x+9=0

a = 1; b = -6; c = +9;
Δ = b2-4ac
Δ = -62-4·1·9
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{6}{2}=3$

See similar equations:

| 2x-5=30+85 | | 5/6k=1=6 | | 2r^2+5r=-3 | | 4x-15+9x-80=180 | | 3/4x=200 | | 14k=28 | | 55p+6.99=11.94 | | 4x^2+1.6=0 | | 8y+22=40 | | 0(x−2)2−6(x−2)+5=0 | | H(t)=-16t2+46t+0.5 | | 4×(2x-x)=2×(2x+3) | | x+3x/4=21 | | 0(5x+2)2+15x+6=0 | | 7+9r=147 | | 3.6+4x=2 | | 0.2m+3=8.6 | | $455/x=20/100 | | 2.25-x=2 | | 6x/4=124 | | 11(b+18)-6(2b+1)=4(-b+9)+b | | -4v=8/5 | | 4+55+6x=8x | | (-3/x+4)+(7/x-4)=-5x+4/x^2-16 | | 8x3.25=26 | | |b-3|=2b+4 | | |b-3|=2b | | 1-3x=5-6x | | -8.5x+0.86=-2.54 | | v^+9^+18=0 | | 3-5(1-2x)=9x+x-4 | | -3(3+5x)=99 |

Equations solver categories