5x(5x-2)=8

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Solution for 5x(5x-2)=8 equation:


Simplifying
5x(5x + -2) = 8

Reorder the terms:
5x(-2 + 5x) = 8
(-2 * 5x + 5x * 5x) = 8
(-10x + 25x2) = 8

Solving
-10x + 25x2 = 8

Solving for variable 'x'.

Reorder the terms:
-8 + -10x + 25x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + -10x + 25x2 = 0

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

Subproblem 1

Set the factor '(-2 + -5x)' equal to zero and attempt to solve: Simplifying -2 + -5x = 0 Solving -2 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -5x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -5x = 0 + 2 -5x = 0 + 2 Combine like terms: 0 + 2 = 2 -5x = 2 Divide each side by '-5'. x = -0.4 Simplifying x = -0.4

Subproblem 2

Set the factor '(4 + -5x)' equal to zero and attempt to solve: Simplifying 4 + -5x = 0 Solving 4 + -5x = 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 + -5x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5x = 0 + -4 -5x = 0 + -4 Combine like terms: 0 + -4 = -4 -5x = -4 Divide each side by '-5'. x = 0.8 Simplifying x = 0.8

Solution

x = {-0.4, 0.8}

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