(2x-6)(-x+5)-2(-x+5)=0

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Solution for (2x-6)(-x+5)-2(-x+5)=0 equation:


Simplifying
(2x + -6)(-1x + 5) + -2(-1x + 5) = 0

Reorder the terms:
(-6 + 2x)(-1x + 5) + -2(-1x + 5) = 0

Reorder the terms:
(-6 + 2x)(5 + -1x) + -2(-1x + 5) = 0

Multiply (-6 + 2x) * (5 + -1x)
(-6(5 + -1x) + 2x * (5 + -1x)) + -2(-1x + 5) = 0
((5 * -6 + -1x * -6) + 2x * (5 + -1x)) + -2(-1x + 5) = 0
((-30 + 6x) + 2x * (5 + -1x)) + -2(-1x + 5) = 0
(-30 + 6x + (5 * 2x + -1x * 2x)) + -2(-1x + 5) = 0
(-30 + 6x + (10x + -2x2)) + -2(-1x + 5) = 0

Combine like terms: 6x + 10x = 16x
(-30 + 16x + -2x2) + -2(-1x + 5) = 0

Reorder the terms:
-30 + 16x + -2x2 + -2(5 + -1x) = 0
-30 + 16x + -2x2 + (5 * -2 + -1x * -2) = 0
-30 + 16x + -2x2 + (-10 + 2x) = 0

Reorder the terms:
-30 + -10 + 16x + 2x + -2x2 = 0

Combine like terms: -30 + -10 = -40
-40 + 16x + 2x + -2x2 = 0

Combine like terms: 16x + 2x = 18x
-40 + 18x + -2x2 = 0

Solving
-40 + 18x + -2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-20 + 9x + -1x2) = 0

Factor a trinomial.
2((-5 + x)(4 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + x)' equal to zero and attempt to solve: Simplifying -5 + x = 0 Solving -5 + x = 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 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {5, 4}

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