(x-9)(x-12)=0

Simple and best practice solution for (x-9)(x-12)=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-9)(x-12)=0 equation:


Simplifying
(x + -9)(x + -12) = 0

Reorder the terms:
(-9 + x)(x + -12) = 0

Reorder the terms:
(-9 + x)(-12 + x) = 0

Multiply (-9 + x) * (-12 + x)
(-9(-12 + x) + x(-12 + x)) = 0
((-12 * -9 + x * -9) + x(-12 + x)) = 0
((108 + -9x) + x(-12 + x)) = 0
(108 + -9x + (-12 * x + x * x)) = 0
(108 + -9x + (-12x + x2)) = 0

Combine like terms: -9x + -12x = -21x
(108 + -21x + x2) = 0

Solving
108 + -21x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(9 + -1x)(12 + -1x) = 0

Subproblem 1

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Subproblem 2

Set the factor '(12 + -1x)' equal to zero and attempt to solve: Simplifying 12 + -1x = 0 Solving 12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x = 0 + -12 -1x = 0 + -12 Combine like terms: 0 + -12 = -12 -1x = -12 Divide each side by '-1'. x = 12 Simplifying x = 12

Solution

x = {9, 12}

See similar equations:

| a=bx+cx^3 | | 7x-2y+4=o | | 2x-8x+13=26-x+14 | | 4-4x=4x+4 | | 3a+3b-2ab=0 | | 16-3x=11-21x | | 8-6x=9+x | | 13+7x=6-7x | | 8(3x-8x)(4x+9)=0 | | 14x-9=5x | | 17x-3=3x+11 | | 14x-9x=5x | | 29x=9+2x | | 9m-12=160 | | 15v=-8v | | x^3+8x^2+17x-4=0 | | lnx-ln(x-6)=3 | | lnx-ln(x+6)=3 | | x^4-7x^3+8x^2+7x+1=0 | | x^(7/5)/9=169/x^(3/5) | | 6x^2+2xy+4y=216 | | x*3+52=7*x+8 | | 250=3a+4b | | 250=3n+4n | | 32x-23=343 | | Y=ln(4x+5) | | 9x-2y+15w-7y-5w+3x= | | 7w+5y+6x+6x-14y+3w= | | *15/16*(-14/9) | | a^2+1=3a | | 6m-8=m-18 | | 6m-8=m+18 |

Equations solver categories