(x+3)(x+3)-4(x+3)-12=0

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Solution for (x+3)(x+3)-4(x+3)-12=0 equation:


Simplifying
(x + 3)(x + 3) + -4(x + 3) + -12 = 0

Reorder the terms:
(3 + x)(x + 3) + -4(x + 3) + -12 = 0

Reorder the terms:
(3 + x)(3 + x) + -4(x + 3) + -12 = 0

Multiply (3 + x) * (3 + x)
(3(3 + x) + x(3 + x)) + -4(x + 3) + -12 = 0
((3 * 3 + x * 3) + x(3 + x)) + -4(x + 3) + -12 = 0
((9 + 3x) + x(3 + x)) + -4(x + 3) + -12 = 0
(9 + 3x + (3 * x + x * x)) + -4(x + 3) + -12 = 0
(9 + 3x + (3x + x2)) + -4(x + 3) + -12 = 0

Combine like terms: 3x + 3x = 6x
(9 + 6x + x2) + -4(x + 3) + -12 = 0

Reorder the terms:
9 + 6x + x2 + -4(3 + x) + -12 = 0
9 + 6x + x2 + (3 * -4 + x * -4) + -12 = 0
9 + 6x + x2 + (-12 + -4x) + -12 = 0

Reorder the terms:
9 + -12 + -12 + 6x + -4x + x2 = 0

Combine like terms: 9 + -12 = -3
-3 + -12 + 6x + -4x + x2 = 0

Combine like terms: -3 + -12 = -15
-15 + 6x + -4x + x2 = 0

Combine like terms: 6x + -4x = 2x
-15 + 2x + x2 = 0

Solving
-15 + 2x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -1x)(3 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-5, 3}

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