x(x-3)=x^2+8x+9

Simple and best practice solution for x(x-3)=x^2+8x+9 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(x-3)=x^2+8x+9 equation:


Simplifying
x(x + -3) = x2 + 8x + 9

Reorder the terms:
x(-3 + x) = x2 + 8x + 9
(-3 * x + x * x) = x2 + 8x + 9
(-3x + x2) = x2 + 8x + 9

Reorder the terms:
-3x + x2 = 9 + 8x + x2

Add '-1x2' to each side of the equation.
-3x + x2 + -1x2 = 9 + 8x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-3x + 0 = 9 + 8x + x2 + -1x2
-3x = 9 + 8x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-3x = 9 + 8x + 0
-3x = 9 + 8x

Solving
-3x = 9 + 8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8x' to each side of the equation.
-3x + -8x = 9 + 8x + -8x

Combine like terms: -3x + -8x = -11x
-11x = 9 + 8x + -8x

Combine like terms: 8x + -8x = 0
-11x = 9 + 0
-11x = 9

Divide each side by '-11'.
x = -0.8181818182

Simplifying
x = -0.8181818182

See similar equations:

| 4x+38=4 | | d=-2(y-8) | | x^4+12x=13x^2 | | 3*x+12=27 | | 4*x-4=36 | | c=5t-(t+8)+(t*t-2) | | 694+396+x=1742 | | y/13=34 | | 3x+4y=3.91 | | b=(b-4)-(5+3b) | | 2X=X(1+0.087) | | a=2-(5+2a) | | 14x^2+3x=0 | | 64x-4x^2=0 | | y=(-10x^2)+50X | | 3t^2/5=t/5+7/12 | | 2X=X(1+0.087)N | | x^2/6+5x/6+1=0 | | 1/4(x+12)=9 | | x^2-8x=x(5+x) | | 5(2+x)=4x+17 | | x^2+4x-24= | | 3x+3=10x-80 | | 2x^2+(3a+4b)x=0 | | 2x^2+(3a+4b)x+a^2+3ab+2b^2=0 | | 2(2c-1)=4(3c-2) | | 4b^2-11ab+6a^2=0 | | 36r=12 | | 6a^2+ab-2b^2=0 | | 1/2x+1/4-1/x-1=x/2 | | 6x+2=4+18 | | 8x+33=27 |

Equations solver categories