y^2=7y-12

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Solution for y^2=7y-12 equation:


Simplifying
y2 = 7y + -12

Reorder the terms:
y2 = -12 + 7y

Solving
y2 = -12 + 7y

Solving for variable 'y'.

Reorder the terms:
12 + -7y + y2 = -12 + 7y + 12 + -7y

Reorder the terms:
12 + -7y + y2 = -12 + 12 + 7y + -7y

Combine like terms: -12 + 12 = 0
12 + -7y + y2 = 0 + 7y + -7y
12 + -7y + y2 = 7y + -7y

Combine like terms: 7y + -7y = 0
12 + -7y + y2 = 0

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

Solution

y = {3, 4}

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