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Mathematics 9 Online
OpenStudy (ttop0816):

please help! Simplify -3xy^3 + 7xy^3 + (-xy^3) + (-3xy^3). 0 xy^3 3xy^3 -xy^3

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (ttop0816):

3xy^3?

OpenStudy (skullpatrol):

Why?

OpenStudy (skullpatrol):

$$\huge -3xy^3 + 7xy^3 + (-xy^3) + (-3xy^3)$$

OpenStudy (ttop0816):

i got 0!

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