6x(x-2)=90

Simple and best practice solution for 6x(x-2)=90 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 6x(x-2)=90 equation:


Simplifying
6x(x + -2) = 90

Reorder the terms:
6x(-2 + x) = 90
(-2 * 6x + x * 6x) = 90
(-12x + 6x2) = 90

Solving
-12x + 6x2 = 90

Solving for variable 'x'.

Reorder the terms:
-90 + -12x + 6x2 = 90 + -90

Combine like terms: 90 + -90 = 0
-90 + -12x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(-15 + -2x + x2) = 0

Factor a trinomial.
6((-3 + -1x)(5 + -1x)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-3, 5}

See similar equations:

| 4z/z-0.5-2/z-0.25=0 | | 14p+2=4p+8 | | 3b-1=20 | | e(6x+7)=10 | | 12x+25=14x+85 | | 91.5624=r^2 | | 98.4704=3.14r^2 | | 2/9•1/3=-1 | | y=x^3+2x^2-2x+3 | | F(-5)=2x^2+3x-4 | | Ax-c=bx-a | | 12logx-log=1 | | x/-3=17 | | -5+3x=-9x+10 | | 3x+5y-7z=0 | | 7/3m=2 | | -1/2*5/6 | | -15=3f+9 | | 213/÷73/8 | | Log[2](7x+5)=5 | | -35=8x-25-6x | | 2/x-/=/ | | -7+2x=-4x+8 | | 2x^2+1[4x(-2)]=0 | | {((x/5)-(y/4)=1) | | 3x/11 | | 4x-10=2x+28 | | k+15=-2 | | X+3x=300 | | j+14=-7 | | 12s=144 | | 9x=7x-(1-11) |

Equations solver categories