(x-2)(x-10)=-3x

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Solution for (x-2)(x-10)=-3x equation: 


Simplifying
(x + -2)(x + -10) = -3x

Reorder the terms:
(-2 + x)(x + -10) = -3x

Reorder the terms:
(-2 + x)(-10 + x) = -3x

Multiply (-2 + x) * (-10 + x)
(-2(-10 + x) + x(-10 + x)) = -3x
((-10 * -2 + x * -2) + x(-10 + x)) = -3x
((20 + -2x) + x(-10 + x)) = -3x
(20 + -2x + (-10 * x + x * x)) = -3x
(20 + -2x + (-10x + x2)) = -3x

Combine like terms: -2x + -10x = -12x
(20 + -12x + x2) = -3x

Solving
20 + -12x + x2 = -3x

Solving for variable 'x'.

Reorder the terms:
20 + -12x + 3x + x2 = -3x + 3x

Combine like terms: -12x + 3x = -9x
20 + -9x + x2 = -3x + 3x

Combine like terms: -3x + 3x = 0
20 + -9x + x2 = 0

Factor a trinomial.
(4 + -1x)(5 + -1x) = 0


Subproblem 1
Set the factor '(4 + -1x)' equal to zero and attempt to solve:

Simplifying
4 + -1x = 0

Solving
4 + -1x = 0

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

Add '-4' to each side of the equation.
4 + -4 + -1x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 0 + -4
-1x = 0 + -4

Combine like terms: 0 + -4 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4

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 = {4, 5}

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