y^2+9y=36

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Solution for y^2+9y=36 equation:


Simplifying
y2 + 9y = 36

Reorder the terms:
9y + y2 = 36

Solving
9y + y2 = 36

Solving for variable 'y'.

Reorder the terms:
-36 + 9y + y2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + 9y + y2 = 0

Factor a trinomial.
(-12 + -1y)(3 + -1y) = 0

Subproblem 1

Set the factor '(-12 + -1y)' equal to zero and attempt to solve: Simplifying -12 + -1y = 0 Solving -12 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -1y = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -1y = 0 + 12 -1y = 0 + 12 Combine like terms: 0 + 12 = 12 -1y = 12 Divide each side by '-1'. y = -12 Simplifying y = -12

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 = {-12, 3}

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