2x^2=9(x-1)

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


Simplifying
2x2 = 9(x + -1)

Reorder the terms:
2x2 = 9(-1 + x)
2x2 = (-1 * 9 + x * 9)
2x2 = (-9 + 9x)

Solving
2x2 = -9 + 9x

Solving for variable 'x'.

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

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

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

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

Factor a trinomial.
(3 + -2x)(3 + -1x) = 0

Subproblem 1

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {1.5, 3}

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