(3y+12)(10y+11)+(6y+13)(3y+12)=0

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Solution for (3y+12)(10y+11)+(6y+13)(3y+12)=0 equation:


Simplifying
(3y + 12)(10y + 11) + (6y + 13)(3y + 12) = 0

Reorder the terms:
(12 + 3y)(10y + 11) + (6y + 13)(3y + 12) = 0

Reorder the terms:
(12 + 3y)(11 + 10y) + (6y + 13)(3y + 12) = 0

Multiply (12 + 3y) * (11 + 10y)
(12(11 + 10y) + 3y * (11 + 10y)) + (6y + 13)(3y + 12) = 0
((11 * 12 + 10y * 12) + 3y * (11 + 10y)) + (6y + 13)(3y + 12) = 0
((132 + 120y) + 3y * (11 + 10y)) + (6y + 13)(3y + 12) = 0
(132 + 120y + (11 * 3y + 10y * 3y)) + (6y + 13)(3y + 12) = 0
(132 + 120y + (33y + 30y2)) + (6y + 13)(3y + 12) = 0

Combine like terms: 120y + 33y = 153y
(132 + 153y + 30y2) + (6y + 13)(3y + 12) = 0

Reorder the terms:
132 + 153y + 30y2 + (13 + 6y)(3y + 12) = 0

Reorder the terms:
132 + 153y + 30y2 + (13 + 6y)(12 + 3y) = 0

Multiply (13 + 6y) * (12 + 3y)
132 + 153y + 30y2 + (13(12 + 3y) + 6y * (12 + 3y)) = 0
132 + 153y + 30y2 + ((12 * 13 + 3y * 13) + 6y * (12 + 3y)) = 0
132 + 153y + 30y2 + ((156 + 39y) + 6y * (12 + 3y)) = 0
132 + 153y + 30y2 + (156 + 39y + (12 * 6y + 3y * 6y)) = 0
132 + 153y + 30y2 + (156 + 39y + (72y + 18y2)) = 0

Combine like terms: 39y + 72y = 111y
132 + 153y + 30y2 + (156 + 111y + 18y2) = 0

Reorder the terms:
132 + 156 + 153y + 111y + 30y2 + 18y2 = 0

Combine like terms: 132 + 156 = 288
288 + 153y + 111y + 30y2 + 18y2 = 0

Combine like terms: 153y + 111y = 264y
288 + 264y + 30y2 + 18y2 = 0

Combine like terms: 30y2 + 18y2 = 48y2
288 + 264y + 48y2 = 0

Solving
288 + 264y + 48y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '24'.
24(12 + 11y + 2y2) = 0

Factor a trinomial.
24((4 + y)(3 + 2y)) = 0

Ignore the factor 24.

Subproblem 1

Set the factor '(4 + y)' equal to zero and attempt to solve: Simplifying 4 + y = 0 Solving 4 + y = 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 + y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + y = 0 + -4 y = 0 + -4 Combine like terms: 0 + -4 = -4 y = -4 Simplifying y = -4

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 = {-4, -1.5}

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