(x*x+9-6x)-(4x-12)(x+13)=0

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Solution for (x*x+9-6x)-(4x-12)(x+13)=0 equation:


Simplifying
(x * x + 9 + -6x) + -1(4x + -12)(x + 13) = 0

Multiply x * x
(x2 + 9 + -6x) + -1(4x + -12)(x + 13) = 0

Reorder the terms:
(9 + -6x + x2) + -1(4x + -12)(x + 13) = 0

Remove parenthesis around (9 + -6x + x2)
9 + -6x + x2 + -1(4x + -12)(x + 13) = 0

Reorder the terms:
9 + -6x + x2 + -1(-12 + 4x)(x + 13) = 0

Reorder the terms:
9 + -6x + x2 + -1(-12 + 4x)(13 + x) = 0

Multiply (-12 + 4x) * (13 + x)
9 + -6x + x2 + -1(-12(13 + x) + 4x * (13 + x)) = 0
9 + -6x + x2 + -1((13 * -12 + x * -12) + 4x * (13 + x)) = 0
9 + -6x + x2 + -1((-156 + -12x) + 4x * (13 + x)) = 0
9 + -6x + x2 + -1(-156 + -12x + (13 * 4x + x * 4x)) = 0
9 + -6x + x2 + -1(-156 + -12x + (52x + 4x2)) = 0

Combine like terms: -12x + 52x = 40x
9 + -6x + x2 + -1(-156 + 40x + 4x2) = 0
9 + -6x + x2 + (-156 * -1 + 40x * -1 + 4x2 * -1) = 0
9 + -6x + x2 + (156 + -40x + -4x2) = 0

Reorder the terms:
9 + 156 + -6x + -40x + x2 + -4x2 = 0

Combine like terms: 9 + 156 = 165
165 + -6x + -40x + x2 + -4x2 = 0

Combine like terms: -6x + -40x = -46x
165 + -46x + x2 + -4x2 = 0

Combine like terms: x2 + -4x2 = -3x2
165 + -46x + -3x2 = 0

Solving
165 + -46x + -3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + -1x)(55 + 3x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(55 + 3x)' equal to zero and attempt to solve: Simplifying 55 + 3x = 0 Solving 55 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-55' to each side of the equation. 55 + -55 + 3x = 0 + -55 Combine like terms: 55 + -55 = 0 0 + 3x = 0 + -55 3x = 0 + -55 Combine like terms: 0 + -55 = -55 3x = -55 Divide each side by '3'. x = -18.33333333 Simplifying x = -18.33333333

Solution

x = {3, -18.33333333}

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