(x+6)(x+6)-16=0

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Solution for (x+6)(x+6)-16=0 equation:


Simplifying
(x + 6)(x + 6) + -16 = 0

Reorder the terms:
(6 + x)(x + 6) + -16 = 0

Reorder the terms:
(6 + x)(6 + x) + -16 = 0

Multiply (6 + x) * (6 + x)
(6(6 + x) + x(6 + x)) + -16 = 0
((6 * 6 + x * 6) + x(6 + x)) + -16 = 0
((36 + 6x) + x(6 + x)) + -16 = 0
(36 + 6x + (6 * x + x * x)) + -16 = 0
(36 + 6x + (6x + x2)) + -16 = 0

Combine like terms: 6x + 6x = 12x
(36 + 12x + x2) + -16 = 0

Reorder the terms:
36 + -16 + 12x + x2 = 0

Combine like terms: 36 + -16 = 20
20 + 12x + x2 = 0

Solving
20 + 12x + x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(10 + x)' equal to zero and attempt to solve: Simplifying 10 + x = 0 Solving 10 + x = 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 + x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + x = 0 + -10 x = 0 + -10 Combine like terms: 0 + -10 = -10 x = -10 Simplifying x = -10

Subproblem 2

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

Solution

x = {-10, -2}

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