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

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


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

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

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

Multiply (-9 + 2x) * (5 + 9x)
(-9(5 + 9x) + 2x * (5 + 9x)) = 0
((5 * -9 + 9x * -9) + 2x * (5 + 9x)) = 0
((-45 + -81x) + 2x * (5 + 9x)) = 0
(-45 + -81x + (5 * 2x + 9x * 2x)) = 0
(-45 + -81x + (10x + 18x2)) = 0

Combine like terms: -81x + 10x = -71x
(-45 + -71x + 18x2) = 0

Solving
-45 + -71x + 18x2 = 0

Solving for variable 'x'.

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

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5

Solution

x = {-0.5555555556, 4.5}

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