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Mathematics 13 Online
OpenStudy (anonymous):

find the product of (2x+5y)(2x-5y)

OpenStudy (opcode):

Do you know how to use FOIL?

OpenStudy (opcode):

@bangbang559 FOIL = First Outer Inner Last.

OpenStudy (anonymous):

4x^2 - 25y^2 is this the answer?

OpenStudy (ranga):

Yes.

OpenStudy (opcode):

\[4 x^2-25 y^2\] Is correct.

OpenStudy (anonymous):

thanks guys :)

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