(4y+6)(9+y)=0

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Solution for (4y+6)(9+y)=0 equation:


Simplifying
(4y + 6)(9 + y) = 0

Reorder the terms:
(6 + 4y)(9 + y) = 0

Multiply (6 + 4y) * (9 + y)
(6(9 + y) + 4y * (9 + y)) = 0
((9 * 6 + y * 6) + 4y * (9 + y)) = 0
((54 + 6y) + 4y * (9 + y)) = 0
(54 + 6y + (9 * 4y + y * 4y)) = 0
(54 + 6y + (36y + 4y2)) = 0

Combine like terms: 6y + 36y = 42y
(54 + 42y + 4y2) = 0

Solving
54 + 42y + 4y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '2'.
2(27 + 21y + 2y2) = 0

Factor a trinomial.
2((9 + y)(3 + 2y)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(9 + y)' equal to zero and attempt to solve: Simplifying 9 + y = 0 Solving 9 + y = 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 + y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + y = 0 + -9 y = 0 + -9 Combine like terms: 0 + -9 = -9 y = -9 Simplifying y = -9

Subproblem 2

Set the factor '(3 + 2y)' equal to zero and attempt to solve: Simplifying 3 + 2y = 0 Solving 3 + 2y = 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 + 2y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2y = 0 + -3 2y = 0 + -3 Combine like terms: 0 + -3 = -3 2y = -3 Divide each side by '2'. y = -1.5 Simplifying y = -1.5

Solution

y = {-9, -1.5}

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