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Mathematics 11 Online
OpenStudy (anonymous):

help explain this please?! (-5m²n⁵) (8mn) =

OpenStudy (luigi0210):

When multiplying exponents you add them together

OpenStudy (skullpatrol):

$$ (-5m²n⁵) (8mn) = -5*\underbrace{m*m}*\underbrace {n*n*n*n*n}*8*m*n$$

OpenStudy (skullpatrol):

now use ab=ba

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