-y^2=-10y+25

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Solution for -y^2=-10y+25 equation:


Simplifying
-1y2 = -10y + 25

Reorder the terms:
-1y2 = 25 + -10y

Solving
-1y2 = 25 + -10y

Solving for variable 'y'.

Reorder the terms:
-25 + 10y + -1y2 = 25 + -10y + -25 + 10y

Reorder the terms:
-25 + 10y + -1y2 = 25 + -25 + -10y + 10y

Combine like terms: 25 + -25 = 0
-25 + 10y + -1y2 = 0 + -10y + 10y
-25 + 10y + -1y2 = -10y + 10y

Combine like terms: -10y + 10y = 0
-25 + 10y + -1y2 = 0

Factor a trinomial.
(-5 + y)(5 + -1y) = 0

Subproblem 1

Set the factor '(-5 + y)' equal to zero and attempt to solve: Simplifying -5 + y = 0 Solving -5 + y = 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 + y = 0 + 5 Combine like terms: -5 + 5 = 0 0 + y = 0 + 5 y = 0 + 5 Combine like terms: 0 + 5 = 5 y = 5 Simplifying y = 5

Subproblem 2

Set the factor '(5 + -1y)' equal to zero and attempt to solve: Simplifying 5 + -1y = 0 Solving 5 + -1y = 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 + -1y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1y = 0 + -5 -1y = 0 + -5 Combine like terms: 0 + -5 = -5 -1y = -5 Divide each side by '-1'. y = 5 Simplifying y = 5

Solution

y = {5, 5}

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