0=4(4x-3)(x-5)

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Solution for 0=4(4x-3)(x-5) equation:


Simplifying
0 = 4(4x + -3)(x + -5)

Reorder the terms:
0 = 4(-3 + 4x)(x + -5)

Reorder the terms:
0 = 4(-3 + 4x)(-5 + x)

Multiply (-3 + 4x) * (-5 + x)
0 = 4(-3(-5 + x) + 4x * (-5 + x))
0 = 4((-5 * -3 + x * -3) + 4x * (-5 + x))
0 = 4((15 + -3x) + 4x * (-5 + x))
0 = 4(15 + -3x + (-5 * 4x + x * 4x))
0 = 4(15 + -3x + (-20x + 4x2))

Combine like terms: -3x + -20x = -23x
0 = 4(15 + -23x + 4x2)
0 = (15 * 4 + -23x * 4 + 4x2 * 4)
0 = (60 + -92x + 16x2)

Solving
0 = 60 + -92x + 16x2

Solving for variable 'x'.

Combine like terms: 0 + -60 = -60
-60 + 92x + -16x2 = 60 + -92x + 16x2 + -60 + 92x + -16x2

Reorder the terms:
-60 + 92x + -16x2 = 60 + -60 + -92x + 92x + 16x2 + -16x2

Combine like terms: 60 + -60 = 0
-60 + 92x + -16x2 = 0 + -92x + 92x + 16x2 + -16x2
-60 + 92x + -16x2 = -92x + 92x + 16x2 + -16x2

Combine like terms: -92x + 92x = 0
-60 + 92x + -16x2 = 0 + 16x2 + -16x2
-60 + 92x + -16x2 = 16x2 + -16x2

Combine like terms: 16x2 + -16x2 = 0
-60 + 92x + -16x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-15 + 23x + -4x2) = 0

Factor a trinomial.
4((-5 + x)(3 + -4x)) = 0

Ignore the factor 4.

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 '(3 + -4x)' equal to zero and attempt to solve: Simplifying 3 + -4x = 0 Solving 3 + -4x = 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 + -4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4x = 0 + -3 -4x = 0 + -3 Combine like terms: 0 + -3 = -3 -4x = -3 Divide each side by '-4'. x = 0.75 Simplifying x = 0.75

Solution

x = {5, 0.75}

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