y^2-6y+9=25

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Solution for y^2-6y+9=25 equation:


Simplifying
y2 + -6y + 9 = 25

Reorder the terms:
9 + -6y + y2 = 25

Solving
9 + -6y + y2 = 25

Solving for variable 'y'.

Reorder the terms:
9 + -25 + -6y + y2 = 25 + -25

Combine like terms: 9 + -25 = -16
-16 + -6y + y2 = 25 + -25

Combine like terms: 25 + -25 = 0
-16 + -6y + y2 = 0

Factor a trinomial.
(-2 + -1y)(8 + -1y) = 0

Subproblem 1

Set the factor '(-2 + -1y)' equal to zero and attempt to solve: Simplifying -2 + -1y = 0 Solving -2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1y = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1y = 0 + 2 -1y = 0 + 2 Combine like terms: 0 + 2 = 2 -1y = 2 Divide each side by '-1'. y = -2 Simplifying y = -2

Subproblem 2

Set the factor '(8 + -1y)' equal to zero and attempt to solve: Simplifying 8 + -1y = 0 Solving 8 + -1y = 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 + -1y = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1y = 0 + -8 -1y = 0 + -8 Combine like terms: 0 + -8 = -8 -1y = -8 Divide each side by '-1'. y = 8 Simplifying y = 8

Solution

y = {-2, 8}

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