2y^2-3y=9

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Solution for 2y^2-3y=9 equation:


Simplifying
2y2 + -3y = 9

Reorder the terms:
-3y + 2y2 = 9

Solving
-3y + 2y2 = 9

Solving for variable 'y'.

Reorder the terms:
-9 + -3y + 2y2 = 9 + -9

Combine like terms: 9 + -9 = 0
-9 + -3y + 2y2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

y = {-1.5, 3}

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