2y(5y+6)=16

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Solution for 2y(5y+6)=16 equation:


Simplifying
2y(5y + 6) = 16

Reorder the terms:
2y(6 + 5y) = 16
(6 * 2y + 5y * 2y) = 16
(12y + 10y2) = 16

Solving
12y + 10y2 = 16

Solving for variable 'y'.

Reorder the terms:
-16 + 12y + 10y2 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + 12y + 10y2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-8 + 6y + 5y2) = 0

Factor a trinomial.
2((-2 + -1y)(4 + -5y)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-2 + -1y)' equal to zero and attempt to solve: Simplifying -2 + -1y = 0 Solving -2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1y = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1y = 0 + 2 -1y = 0 + 2 Combine like terms: 0 + 2 = 2 -1y = 2 Divide each side by '-1'. y = -2 Simplifying y = -2

Subproblem 2

Set the factor '(4 + -5y)' equal to zero and attempt to solve: Simplifying 4 + -5y = 0 Solving 4 + -5y = 0 Move all terms containing y to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -5y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5y = 0 + -4 -5y = 0 + -4 Combine like terms: 0 + -4 = -4 -5y = -4 Divide each side by '-5'. y = 0.8 Simplifying y = 0.8

Solution

y = {-2, 0.8}

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