8y^2-48y=216

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Solution for 8y^2-48y=216 equation:


Simplifying
8y2 + -48y = 216

Reorder the terms:
-48y + 8y2 = 216

Solving
-48y + 8y2 = 216

Solving for variable 'y'.

Reorder the terms:
-216 + -48y + 8y2 = 216 + -216

Combine like terms: 216 + -216 = 0
-216 + -48y + 8y2 = 0

Factor out the Greatest Common Factor (GCF), '8'.
8(-27 + -6y + y2) = 0

Factor a trinomial.
8((-3 + -1y)(9 + -1y)) = 0

Ignore the factor 8.

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -1y)' equal to zero and attempt to solve: Simplifying 9 + -1y = 0 Solving 9 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1y = 0 + -9 -1y = 0 + -9 Combine like terms: 0 + -9 = -9 -1y = -9 Divide each side by '-1'. y = 9 Simplifying y = 9

Solution

y = {-3, 9}

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