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

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


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

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

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

Multiply (-1 + 2x) * (2 + 9x)
(-1(2 + 9x) + 2x * (2 + 9x)) = 0
((2 * -1 + 9x * -1) + 2x * (2 + 9x)) = 0
((-2 + -9x) + 2x * (2 + 9x)) = 0
(-2 + -9x + (2 * 2x + 9x * 2x)) = 0
(-2 + -9x + (4x + 18x2)) = 0

Combine like terms: -9x + 4x = -5x
(-2 + -5x + 18x2) = 0

Solving
-2 + -5x + 18x2 = 0

Solving for variable 'x'.

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

Subproblem 1

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

Subproblem 2

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

Solution

x = {-0.2222222222, 0.5}

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