9x^2=-2x-1+8x^2

Simple and best practice solution for 9x^2=-2x-1+8x^2 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 9x^2=-2x-1+8x^2 equation: 



9x^2=-2x-1+8x^2

We move all terms to the left:

9x^2-(-2x-1+8x^2)=0

We get rid of parentheses

9x^2-8x^2+2x+1=0

We add all the numbers together, and all the variables

x^2+2x+1=0

a = 1; b = 2; c = +1;
Δ = b2-4ac
Δ = 22-4·1·1
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-2}{2}=-1$

See similar equations:

| 3s=-5s+8 | | x/11=2/22 | | v+(-20)=-1 | | 5+60=v | | 2m^2+5=13 | | x=33.33x=16 | | -7x^2+x-14=-9-8x^2+9x | | h+17=40;h= | | -9+7q=-2q | | 0.2w-0.3=0.1 | | 2y=8×+10 | | -17=-4+b | | -11x^2+8x-2=-9x^2+4x | | 3x-7=3-7x | | -3+7=4x-7 | | 3x+36=7 | | 10+4x=2(−x+5)−24 | | 1/2y+3/4=1/8 | | 3x+10=24-4x | | 5x^2-7x-15=-8-9x | | 2(x-3)=5x-(3+x) | | x+9=-11+6x | | -10x^2+2x-1=-9x^2 | | -7x+6=2x+78 | | 2.4-1.2=-0.6m | | 8x^2+5=5x | | 72+p=-42 | | 3x-5=8x=5 | | 0.4x-2.9=1.5. | | 7.8÷2.6=k | | 7x-(-2)=16 | | 2x2-3x=15 |

Equations solver categories