Simplify (3xy+5y)^2-(3xy-5y)^2
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Answer:
60xy^2
Step-by-step explanation:
(3xy+5y)^2-(3xy-5y)^2=
(3xy+5y+3xy-5y)(3xy+5y-3xy+5y)=
6xy*10y= 60xy^2
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