(7x+7)(x+2)=0

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Solution for (7x+7)(x+2)=0 equation:


Simplifying
(7x + 7)(x + 2) = 0

Reorder the terms:
(7 + 7x)(x + 2) = 0

Reorder the terms:
(7 + 7x)(2 + x) = 0

Multiply (7 + 7x) * (2 + x)
(7(2 + x) + 7x * (2 + x)) = 0
((2 * 7 + x * 7) + 7x * (2 + x)) = 0
((14 + 7x) + 7x * (2 + x)) = 0
(14 + 7x + (2 * 7x + x * 7x)) = 0
(14 + 7x + (14x + 7x2)) = 0

Combine like terms: 7x + 14x = 21x
(14 + 21x + 7x2) = 0

Solving
14 + 21x + 7x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7'.
7(2 + 3x + x2) = 0

Factor a trinomial.
7((2 + x)(1 + x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Subproblem 2

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

Solution

x = {-2, -1}

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