sa8yawillysouza sa8yawillysouza

13-10-2016
Mathematics

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Express 9-y^2 as the product of two binomial factors.

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HomertheGenius HomertheGenius

18-10-2016

This is the difference of squares. Formula is:
A² - B² = ( A - B ) · ( A + B )
9 - y² = 3² - y² = ( 3 - y ) · ( 3 + y )

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