(x-2)(x+10)=0

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Solution for (x-2)(x+10)=0 equation:


Simplifying
(x + -2)(x + 10) = 0

Reorder the terms:
(-2 + x)(x + 10) = 0

Reorder the terms:
(-2 + x)(10 + x) = 0

Multiply (-2 + x) * (10 + x)
(-2(10 + x) + x(10 + x)) = 0
((10 * -2 + x * -2) + x(10 + x)) = 0
((-20 + -2x) + x(10 + x)) = 0
(-20 + -2x + (10 * x + x * x)) = 0
(-20 + -2x + (10x + x2)) = 0

Combine like terms: -2x + 10x = 8x
(-20 + 8x + x2) = 0

Solving
-20 + 8x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-10 + -1x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-10 + -1x)' equal to zero and attempt to solve: Simplifying -10 + -1x = 0 Solving -10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -1x = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1x = 0 + 10 -1x = 0 + 10 Combine like terms: 0 + 10 = 10 -1x = 10 Divide each side by '-1'. x = -10 Simplifying x = -10

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-10, 2}

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