y^2+4y-72=180

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Solution for y^2+4y-72=180 equation:


Simplifying
y2 + 4y + -72 = 180

Reorder the terms:
-72 + 4y + y2 = 180

Solving
-72 + 4y + y2 = 180

Solving for variable 'y'.

Reorder the terms:
-72 + -180 + 4y + y2 = 180 + -180

Combine like terms: -72 + -180 = -252
-252 + 4y + y2 = 180 + -180

Combine like terms: 180 + -180 = 0
-252 + 4y + y2 = 0

Factor a trinomial.
(-18 + -1y)(14 + -1y) = 0

Subproblem 1

Set the factor '(-18 + -1y)' equal to zero and attempt to solve: Simplifying -18 + -1y = 0 Solving -18 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + -1y = 0 + 18 Combine like terms: -18 + 18 = 0 0 + -1y = 0 + 18 -1y = 0 + 18 Combine like terms: 0 + 18 = 18 -1y = 18 Divide each side by '-1'. y = -18 Simplifying y = -18

Subproblem 2

Set the factor '(14 + -1y)' equal to zero and attempt to solve: Simplifying 14 + -1y = 0 Solving 14 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + -1y = 0 + -14 Combine like terms: 14 + -14 = 0 0 + -1y = 0 + -14 -1y = 0 + -14 Combine like terms: 0 + -14 = -14 -1y = -14 Divide each side by '-1'. y = 14 Simplifying y = 14

Solution

y = {-18, 14}

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