2x^2-9x=221

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Solution for 2x^2-9x=221 equation:


Simplifying
2x2 + -9x = 221

Reorder the terms:
-9x + 2x2 = 221

Solving
-9x + 2x2 = 221

Solving for variable 'x'.

Reorder the terms:
-221 + -9x + 2x2 = 221 + -221

Combine like terms: 221 + -221 = 0
-221 + -9x + 2x2 = 0

Factor a trinomial.
(-17 + -2x)(13 + -1x) = 0

Subproblem 1

Set the factor '(-17 + -2x)' equal to zero and attempt to solve: Simplifying -17 + -2x = 0 Solving -17 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '17' to each side of the equation. -17 + 17 + -2x = 0 + 17 Combine like terms: -17 + 17 = 0 0 + -2x = 0 + 17 -2x = 0 + 17 Combine like terms: 0 + 17 = 17 -2x = 17 Divide each side by '-2'. x = -8.5 Simplifying x = -8.5

Subproblem 2

Set the factor '(13 + -1x)' equal to zero and attempt to solve: Simplifying 13 + -1x = 0 Solving 13 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -1x = 0 + -13 Combine like terms: 13 + -13 = 0 0 + -1x = 0 + -13 -1x = 0 + -13 Combine like terms: 0 + -13 = -13 -1x = -13 Divide each side by '-1'. x = 13 Simplifying x = 13

Solution

x = {-8.5, 13}

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