Bob can type two recommendation letters in 4 hours while Bill can accomplish the same task in 6 hours. How many hours would it t
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The simplified expression is and the restriction is
The expression is given as:
Express x^2 - y^2 as (x + y)(x - y) and factorize other expressions
Rewrite the expression as products
Cancel out the common factors
Express 4x^2 - y^2 as (2x - y)(2x + y)
Cancel out the common factors
Take the LCM
Hence, the simplified expression is and the restriction is
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