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1.)What is the product of (7u+6v)(7u-6v)?
2.)What is the product of (-m+5n)(-m-5n)?

User Mey
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1 (7u+6v)(7u-6v)
49u^2-42uv+42uv-36v^2
49u^2-36v^2
2. (-m+5n)(-m-5n)
m^2+5mn-5mn-25n^2
m^2-25n^2
User Emptyset
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