x(x+2)-4(x+2)=

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Solution for x(x+2)-4(x+2)= equation:


Simplifying
x(x + 2) + -4(x + 2) = 0

Reorder the terms:
x(2 + x) + -4(x + 2) = 0
(2 * x + x * x) + -4(x + 2) = 0
(2x + x2) + -4(x + 2) = 0

Reorder the terms:
2x + x2 + -4(2 + x) = 0
2x + x2 + (2 * -4 + x * -4) = 0
2x + x2 + (-8 + -4x) = 0

Reorder the terms:
-8 + 2x + -4x + x2 = 0

Combine like terms: 2x + -4x = -2x
-8 + -2x + x2 = 0

Solving
-8 + -2x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-2 + -1x)(4 + -1x) = 0

Subproblem 1

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

Subproblem 2

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

Solution

x = {-2, 4}

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