(2x+9)(x-6)=4x+18

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Solution for (2x+9)(x-6)=4x+18 equation:


Simplifying
(2x + 9)(x + -6) = 4x + 18

Reorder the terms:
(9 + 2x)(x + -6) = 4x + 18

Reorder the terms:
(9 + 2x)(-6 + x) = 4x + 18

Multiply (9 + 2x) * (-6 + x)
(9(-6 + x) + 2x * (-6 + x)) = 4x + 18
((-6 * 9 + x * 9) + 2x * (-6 + x)) = 4x + 18
((-54 + 9x) + 2x * (-6 + x)) = 4x + 18
(-54 + 9x + (-6 * 2x + x * 2x)) = 4x + 18
(-54 + 9x + (-12x + 2x2)) = 4x + 18

Combine like terms: 9x + -12x = -3x
(-54 + -3x + 2x2) = 4x + 18

Reorder the terms:
-54 + -3x + 2x2 = 18 + 4x

Solving
-54 + -3x + 2x2 = 18 + 4x

Solving for variable 'x'.

Reorder the terms:
-54 + -18 + -3x + -4x + 2x2 = 18 + 4x + -18 + -4x

Combine like terms: -54 + -18 = -72
-72 + -3x + -4x + 2x2 = 18 + 4x + -18 + -4x

Combine like terms: -3x + -4x = -7x
-72 + -7x + 2x2 = 18 + 4x + -18 + -4x

Reorder the terms:
-72 + -7x + 2x2 = 18 + -18 + 4x + -4x

Combine like terms: 18 + -18 = 0
-72 + -7x + 2x2 = 0 + 4x + -4x
-72 + -7x + 2x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
-72 + -7x + 2x2 = 0

Factor a trinomial.
(-9 + -2x)(8 + -1x) = 0

Subproblem 1

Set the factor '(-9 + -2x)' equal to zero and attempt to solve: Simplifying -9 + -2x = 0 Solving -9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -2x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -2x = 0 + 9 -2x = 0 + 9 Combine like terms: 0 + 9 = 9 -2x = 9 Divide each side by '-2'. x = -4.5 Simplifying x = -4.5

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {-4.5, 8}

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