(3-y)(3y+8)=0

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Solution for (3-y)(3y+8)=0 equation:


Simplifying
(3 + -1y)(3y + 8) = 0

Reorder the terms:
(3 + -1y)(8 + 3y) = 0

Multiply (3 + -1y) * (8 + 3y)
(3(8 + 3y) + -1y * (8 + 3y)) = 0
((8 * 3 + 3y * 3) + -1y * (8 + 3y)) = 0
((24 + 9y) + -1y * (8 + 3y)) = 0
(24 + 9y + (8 * -1y + 3y * -1y)) = 0
(24 + 9y + (-8y + -3y2)) = 0

Combine like terms: 9y + -8y = 1y
(24 + 1y + -3y2) = 0

Solving
24 + 1y + -3y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(3 + -1y)(8 + 3y) = 0

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 '(8 + 3y)' equal to zero and attempt to solve: Simplifying 8 + 3y = 0 Solving 8 + 3y = 0 Move all terms containing y to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 3y = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 3y = 0 + -8 3y = 0 + -8 Combine like terms: 0 + -8 = -8 3y = -8 Divide each side by '3'. y = -2.666666667 Simplifying y = -2.666666667

Solution

y = {3, -2.666666667}

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