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

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


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

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

Multiply (-9 + 4y) * (6 + y)
(-9(6 + y) + 4y * (6 + y)) = 0
((6 * -9 + y * -9) + 4y * (6 + y)) = 0
((-54 + -9y) + 4y * (6 + y)) = 0
(-54 + -9y + (6 * 4y + y * 4y)) = 0
(-54 + -9y + (24y + 4y2)) = 0

Combine like terms: -9y + 24y = 15y
(-54 + 15y + 4y2) = 0

Solving
-54 + 15y + 4y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-6 + -1y)(9 + -4y) = 0

Subproblem 1

Set the factor '(-6 + -1y)' equal to zero and attempt to solve: Simplifying -6 + -1y = 0 Solving -6 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1y = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1y = 0 + 6 -1y = 0 + 6 Combine like terms: 0 + 6 = 6 -1y = 6 Divide each side by '-1'. y = -6 Simplifying y = -6

Subproblem 2

Set the factor '(9 + -4y)' equal to zero and attempt to solve: Simplifying 9 + -4y = 0 Solving 9 + -4y = 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 + -4y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4y = 0 + -9 -4y = 0 + -9 Combine like terms: 0 + -9 = -9 -4y = -9 Divide each side by '-4'. y = 2.25 Simplifying y = 2.25

Solution

y = {-6, 2.25}

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