(2x-3)(2x+3)=(x+5)-9

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Solution for (2x-3)(2x+3)=(x+5)-9 equation:


Simplifying
(2x + -3)(2x + 3) = (x + 5) + -9

Reorder the terms:
(-3 + 2x)(2x + 3) = (x + 5) + -9

Reorder the terms:
(-3 + 2x)(3 + 2x) = (x + 5) + -9

Multiply (-3 + 2x) * (3 + 2x)
(-3(3 + 2x) + 2x * (3 + 2x)) = (x + 5) + -9
((3 * -3 + 2x * -3) + 2x * (3 + 2x)) = (x + 5) + -9
((-9 + -6x) + 2x * (3 + 2x)) = (x + 5) + -9
(-9 + -6x + (3 * 2x + 2x * 2x)) = (x + 5) + -9
(-9 + -6x + (6x + 4x2)) = (x + 5) + -9

Combine like terms: -6x + 6x = 0
(-9 + 0 + 4x2) = (x + 5) + -9
(-9 + 4x2) = (x + 5) + -9

Reorder the terms:
-9 + 4x2 = (5 + x) + -9

Remove parenthesis around (5 + x)
-9 + 4x2 = 5 + x + -9

Reorder the terms:
-9 + 4x2 = 5 + -9 + x

Combine like terms: 5 + -9 = -4
-9 + 4x2 = -4 + x

Solving
-9 + 4x2 = -4 + x

Solving for variable 'x'.

Reorder the terms:
-9 + 4 + -1x + 4x2 = -4 + x + 4 + -1x

Combine like terms: -9 + 4 = -5
-5 + -1x + 4x2 = -4 + x + 4 + -1x

Reorder the terms:
-5 + -1x + 4x2 = -4 + 4 + x + -1x

Combine like terms: -4 + 4 = 0
-5 + -1x + 4x2 = 0 + x + -1x
-5 + -1x + 4x2 = x + -1x

Combine like terms: x + -1x = 0
-5 + -1x + 4x2 = 0

Factor a trinomial.
(-1 + -1x)(5 + -4x) = 0

Subproblem 1

Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 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 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1

Subproblem 2

Set the factor '(5 + -4x)' equal to zero and attempt to solve: Simplifying 5 + -4x = 0 Solving 5 + -4x = 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 + -4x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4x = 0 + -5 -4x = 0 + -5 Combine like terms: 0 + -5 = -5 -4x = -5 Divide each side by '-4'. x = 1.25 Simplifying x = 1.25

Solution

x = {-1, 1.25}

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