(6y-5)(3y+9)=

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Solution for (6y-5)(3y+9)= equation:


Simplifying
(6y + -5)(3y + 9) = 0

Reorder the terms:
(-5 + 6y)(3y + 9) = 0

Reorder the terms:
(-5 + 6y)(9 + 3y) = 0

Multiply (-5 + 6y) * (9 + 3y)
(-5(9 + 3y) + 6y * (9 + 3y)) = 0
((9 * -5 + 3y * -5) + 6y * (9 + 3y)) = 0
((-45 + -15y) + 6y * (9 + 3y)) = 0
(-45 + -15y + (9 * 6y + 3y * 6y)) = 0
(-45 + -15y + (54y + 18y2)) = 0

Combine like terms: -15y + 54y = 39y
(-45 + 39y + 18y2) = 0

Solving
-45 + 39y + 18y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-15 + 13y + 6y2) = 0

Factor a trinomial.
3((-3 + -1y)(5 + -6y)) = 0

Ignore the factor 3.

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 '(5 + -6y)' equal to zero and attempt to solve: Simplifying 5 + -6y = 0 Solving 5 + -6y = 0 Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -6y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -6y = 0 + -5 -6y = 0 + -5 Combine like terms: 0 + -5 = -5 -6y = -5 Divide each side by '-6'. y = 0.8333333333 Simplifying y = 0.8333333333

Solution

y = {-3, 0.8333333333}

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