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

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


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

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

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

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

Combine like terms: -3x + 3x = 0
(-9 + 0 + x2) = 5x + 5
(-9 + x2) = 5x + 5

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

Solving
-9 + x2 = 5 + 5x

Solving for variable 'x'.

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

Combine like terms: -9 + -5 = -14
-14 + -5x + x2 = 5 + 5x + -5 + -5x

Reorder the terms:
-14 + -5x + x2 = 5 + -5 + 5x + -5x

Combine like terms: 5 + -5 = 0
-14 + -5x + x2 = 0 + 5x + -5x
-14 + -5x + x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-14 + -5x + x2 = 0

Factor a trinomial.
(-2 + -1x)(7 + -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 '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-2, 7}

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