3y^2=13y+100

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Solution for 3y^2=13y+100 equation:


Simplifying
3y2 = 13y + 100

Reorder the terms:
3y2 = 100 + 13y

Solving
3y2 = 100 + 13y

Solving for variable 'y'.

Reorder the terms:
-100 + -13y + 3y2 = 100 + 13y + -100 + -13y

Reorder the terms:
-100 + -13y + 3y2 = 100 + -100 + 13y + -13y

Combine like terms: 100 + -100 = 0
-100 + -13y + 3y2 = 0 + 13y + -13y
-100 + -13y + 3y2 = 13y + -13y

Combine like terms: 13y + -13y = 0
-100 + -13y + 3y2 = 0

Factor a trinomial.
(-4 + -1y)(25 + -3y) = 0

Subproblem 1

Set the factor '(-4 + -1y)' equal to zero and attempt to solve: Simplifying -4 + -1y = 0 Solving -4 + -1y = 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 + -1y = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1y = 0 + 4 -1y = 0 + 4 Combine like terms: 0 + 4 = 4 -1y = 4 Divide each side by '-1'. y = -4 Simplifying y = -4

Subproblem 2

Set the factor '(25 + -3y)' equal to zero and attempt to solve: Simplifying 25 + -3y = 0 Solving 25 + -3y = 0 Move all terms containing y to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -25 + -3y = 0 + -25 Combine like terms: 25 + -25 = 0 0 + -3y = 0 + -25 -3y = 0 + -25 Combine like terms: 0 + -25 = -25 -3y = -25 Divide each side by '-3'. y = 8.333333333 Simplifying y = 8.333333333

Solution

y = {-4, 8.333333333}

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