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

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


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

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

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

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

Combine like terms: -5x + 8x = 3x
(-1 + 3x + 40x2) = 0

Solving
-1 + 3x + 40x2 = 0

Solving for variable 'x'.

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

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -8x)' equal to zero and attempt to solve: Simplifying 1 + -8x = 0 Solving 1 + -8x = 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 + -8x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -8x = 0 + -1 -8x = 0 + -1 Combine like terms: 0 + -1 = -1 -8x = -1 Divide each side by '-8'. x = 0.125 Simplifying x = 0.125

Solution

x = {-0.2, 0.125}

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