(9x-2)(8x+1)=0

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Solution for (9x-2)(8x+1)=0 equation:


Simplifying
(9x + -2)(8x + 1) = 0

Reorder the terms:
(-2 + 9x)(8x + 1) = 0

Reorder the terms:
(-2 + 9x)(1 + 8x) = 0

Multiply (-2 + 9x) * (1 + 8x)
(-2(1 + 8x) + 9x * (1 + 8x)) = 0
((1 * -2 + 8x * -2) + 9x * (1 + 8x)) = 0
((-2 + -16x) + 9x * (1 + 8x)) = 0
(-2 + -16x + (1 * 9x + 8x * 9x)) = 0
(-2 + -16x + (9x + 72x2)) = 0

Combine like terms: -16x + 9x = -7x
(-2 + -7x + 72x2) = 0

Solving
-2 + -7x + 72x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -8x)(2 + -9x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(2 + -9x)' equal to zero and attempt to solve: Simplifying 2 + -9x = 0 Solving 2 + -9x = 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 + -9x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -9x = 0 + -2 -9x = 0 + -2 Combine like terms: 0 + -2 = -2 -9x = -2 Divide each side by '-9'. x = 0.2222222222 Simplifying x = 0.2222222222

Solution

x = {-0.125, 0.2222222222}

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