[(x-5)(x+3)]+16=0

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Solution for [(x-5)(x+3)]+16=0 equation:


Simplifying
[(x + -5)(x + 3)] + 16 = 0

Reorder the terms:
[(-5 + x)(x + 3)] + 16 = 0

Reorder the terms:
[(-5 + x)(3 + x)] + 16 = 0

Multiply (-5 + x) * (3 + x)
[(-5(3 + x) + x(3 + x))] + 16 = 0
[((3 * -5 + x * -5) + x(3 + x))] + 16 = 0
[((-15 + -5x) + x(3 + x))] + 16 = 0
[(-15 + -5x + (3 * x + x * x))] + 16 = 0
[(-15 + -5x + (3x + x2))] + 16 = 0

Combine like terms: -5x + 3x = -2x
[(-15 + -2x + x2)] + 16 = 0
[-15 + -2x + x2] + 16 = 0

Remove brackets around [-15 + -2x + x2]
-15 + -2x + x2 + 16 = 0

Reorder the terms:
-15 + 16 + -2x + x2 = 0

Combine like terms: -15 + 16 = 1
1 + -2x + x2 = 0

Solving
1 + -2x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(1 + -1x)(1 + -1x) = 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 '(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

Solution

x = {1, 1}

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