(5x+8)*(5x-1)=0

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Solution for (5x+8)*(5x-1)=0 equation:


Simplifying
(5x + 8)(5x + -1) = 0

Reorder the terms:
(8 + 5x)(5x + -1) = 0

Reorder the terms:
(8 + 5x)(-1 + 5x) = 0

Multiply (8 + 5x) * (-1 + 5x)
(8(-1 + 5x) + 5x * (-1 + 5x)) = 0
((-1 * 8 + 5x * 8) + 5x * (-1 + 5x)) = 0
((-8 + 40x) + 5x * (-1 + 5x)) = 0
(-8 + 40x + (-1 * 5x + 5x * 5x)) = 0
(-8 + 40x + (-5x + 25x2)) = 0

Combine like terms: 40x + -5x = 35x
(-8 + 35x + 25x2) = 0

Solving
-8 + 35x + 25x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-8 + -5x)(1 + -5x) = 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 '(1 + -5x)' equal to zero and attempt to solve: Simplifying 1 + -5x = 0 Solving 1 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -5x = 0 + -1 -5x = 0 + -1 Combine like terms: 0 + -1 = -1 -5x = -1 Divide each side by '-5'. x = 0.2 Simplifying x = 0.2

Solution

x = {-1.6, 0.2}

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