8x-40+8x-40=18(x-5)*(2x-10)

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Solution for 8x-40+8x-40=18(x-5)*(2x-10) equation:


Simplifying
8x + -40 + 8x + -40 = 18(x + -5)(2x + -10)

Reorder the terms:
-40 + -40 + 8x + 8x = 18(x + -5)(2x + -10)

Combine like terms: -40 + -40 = -80
-80 + 8x + 8x = 18(x + -5)(2x + -10)

Combine like terms: 8x + 8x = 16x
-80 + 16x = 18(x + -5)(2x + -10)

Reorder the terms:
-80 + 16x = 18(-5 + x)(2x + -10)

Reorder the terms:
-80 + 16x = 18(-5 + x)(-10 + 2x)

Multiply (-5 + x) * (-10 + 2x)
-80 + 16x = 18(-5(-10 + 2x) + x(-10 + 2x))
-80 + 16x = 18((-10 * -5 + 2x * -5) + x(-10 + 2x))
-80 + 16x = 18((50 + -10x) + x(-10 + 2x))
-80 + 16x = 18(50 + -10x + (-10 * x + 2x * x))
-80 + 16x = 18(50 + -10x + (-10x + 2x2))

Combine like terms: -10x + -10x = -20x
-80 + 16x = 18(50 + -20x + 2x2)
-80 + 16x = (50 * 18 + -20x * 18 + 2x2 * 18)
-80 + 16x = (900 + -360x + 36x2)

Solving
-80 + 16x = 900 + -360x + 36x2

Solving for variable 'x'.

Reorder the terms:
-80 + -900 + 16x + 360x + -36x2 = 900 + -360x + 36x2 + -900 + 360x + -36x2

Combine like terms: -80 + -900 = -980
-980 + 16x + 360x + -36x2 = 900 + -360x + 36x2 + -900 + 360x + -36x2

Combine like terms: 16x + 360x = 376x
-980 + 376x + -36x2 = 900 + -360x + 36x2 + -900 + 360x + -36x2

Reorder the terms:
-980 + 376x + -36x2 = 900 + -900 + -360x + 360x + 36x2 + -36x2

Combine like terms: 900 + -900 = 0
-980 + 376x + -36x2 = 0 + -360x + 360x + 36x2 + -36x2
-980 + 376x + -36x2 = -360x + 360x + 36x2 + -36x2

Combine like terms: -360x + 360x = 0
-980 + 376x + -36x2 = 0 + 36x2 + -36x2
-980 + 376x + -36x2 = 36x2 + -36x2

Combine like terms: 36x2 + -36x2 = 0
-980 + 376x + -36x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-245 + 94x + -9x2) = 0

Factor a trinomial.
4((-49 + 9x)(5 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-49 + 9x)' equal to zero and attempt to solve: Simplifying -49 + 9x = 0 Solving -49 + 9x = 0 Move all terms containing x to the left, all other terms to the right. Add '49' to each side of the equation. -49 + 49 + 9x = 0 + 49 Combine like terms: -49 + 49 = 0 0 + 9x = 0 + 49 9x = 0 + 49 Combine like terms: 0 + 49 = 49 9x = 49 Divide each side by '9'. x = 5.444444444 Simplifying x = 5.444444444

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {5.444444444, 5}

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