(9x-5)(2x+1)=0

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Solution for (9x-5)(2x+1)=0 equation:


Simplifying
(9x + -5)(2x + 1) = 0

Reorder the terms:
(-5 + 9x)(2x + 1) = 0

Reorder the terms:
(-5 + 9x)(1 + 2x) = 0

Multiply (-5 + 9x) * (1 + 2x)
(-5(1 + 2x) + 9x * (1 + 2x)) = 0
((1 * -5 + 2x * -5) + 9x * (1 + 2x)) = 0
((-5 + -10x) + 9x * (1 + 2x)) = 0
(-5 + -10x + (1 * 9x + 2x * 9x)) = 0
(-5 + -10x + (9x + 18x2)) = 0

Combine like terms: -10x + 9x = -1x
(-5 + -1x + 18x2) = 0

Solving
-5 + -1x + 18x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -2x)(5 + -9x) = 0

Subproblem 1

Set the factor '(-1 + -2x)' equal to zero and attempt to solve: Simplifying -1 + -2x = 0 Solving -1 + -2x = 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 + -2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2x = 0 + 1 -2x = 0 + 1 Combine like terms: 0 + 1 = 1 -2x = 1 Divide each side by '-2'. x = -0.5 Simplifying x = -0.5

Subproblem 2

Set the factor '(5 + -9x)' equal to zero and attempt to solve: Simplifying 5 + -9x = 0 Solving 5 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -9x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -9x = 0 + -5 -9x = 0 + -5 Combine like terms: 0 + -5 = -5 -9x = -5 Divide each side by '-9'. x = 0.5555555556 Simplifying x = 0.5555555556

Solution

x = {-0.5, 0.5555555556}

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