-2x^2+5=-9x

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Solution for -2x^2+5=-9x equation:


Simplifying
-2x2 + 5 = -9x

Reorder the terms:
5 + -2x2 = -9x

Solving
5 + -2x2 = -9x

Solving for variable 'x'.

Reorder the terms:
5 + 9x + -2x2 = -9x + 9x

Combine like terms: -9x + 9x = 0
5 + 9x + -2x2 = 0

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

Subproblem 1

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

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 = {5, -0.5}

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