3y^2=15-4y

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Solution for 3y^2=15-4y equation:


Simplifying
3y2 = 15 + -4y

Solving
3y2 = 15 + -4y

Solving for variable 'y'.

Reorder the terms:
-15 + 4y + 3y2 = 15 + -4y + -15 + 4y

Reorder the terms:
-15 + 4y + 3y2 = 15 + -15 + -4y + 4y

Combine like terms: 15 + -15 = 0
-15 + 4y + 3y2 = 0 + -4y + 4y
-15 + 4y + 3y2 = -4y + 4y

Combine like terms: -4y + 4y = 0
-15 + 4y + 3y2 = 0

Factor a trinomial.
(-3 + -1y)(5 + -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 '(5 + -3y)' equal to zero and attempt to solve: Simplifying 5 + -3y = 0 Solving 5 + -3y = 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 + -3y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3y = 0 + -5 -3y = 0 + -5 Combine like terms: 0 + -5 = -5 -3y = -5 Divide each side by '-3'. y = 1.666666667 Simplifying y = 1.666666667

Solution

y = {-3, 1.666666667}

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