SOLUTION: Operations on Radical Expressions Simplify. (√y + 5)(√y – 5)

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Question 740235: Operations on Radical Expressions

Simplify.
(√y + 5)(√y – 5)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
%28sqrt%28y%29+%2B+5%29%28sqrt%28y%29+-5%29...recognize difference of squares a%5E2-b%5E2=%28a-+b%29%28a+%2B+b%29
so, we have
%28sqrt%28y%29%29%5E2+-+5%5E2
y+-+25