x(5x-8)-4(5x-8)=0

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Solution for x(5x-8)-4(5x-8)=0 equation:


Simplifying
x(5x + -8) + -4(5x + -8) = 0

Reorder the terms:
x(-8 + 5x) + -4(5x + -8) = 0
(-8 * x + 5x * x) + -4(5x + -8) = 0
(-8x + 5x2) + -4(5x + -8) = 0

Reorder the terms:
-8x + 5x2 + -4(-8 + 5x) = 0
-8x + 5x2 + (-8 * -4 + 5x * -4) = 0
-8x + 5x2 + (32 + -20x) = 0

Reorder the terms:
32 + -8x + -20x + 5x2 = 0

Combine like terms: -8x + -20x = -28x
32 + -28x + 5x2 = 0

Solving
32 + -28x + 5x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(8 + -5x)(4 + -1x) = 0

Subproblem 1

Set the factor '(8 + -5x)' equal to zero and attempt to solve: Simplifying 8 + -5x = 0 Solving 8 + -5x = 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 + -5x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -5x = 0 + -8 -5x = 0 + -8 Combine like terms: 0 + -8 = -8 -5x = -8 Divide each side by '-5'. x = 1.6 Simplifying x = 1.6

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 = {1.6, 4}

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