Y^2-225=

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Solution for Y^2-225= equation: 


Simplifying
Y2 + -225 = 0

Reorder the terms:
-225 + Y2 = 0

Solving
-225 + Y2 = 0

Solving for variable 'Y'.

Move all terms containing Y to the left, all other terms to the right.

Add '225' to each side of the equation.
-225 + 225 + Y2 = 0 + 225

Combine like terms: -225 + 225 = 0
0 + Y2 = 0 + 225
Y2 = 0 + 225

Combine like terms: 0 + 225 = 225
Y2 = 225

Simplifying
Y2 = 225

Take the square root of each side:
Y = {-15, 15}

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