SOLUTION: Multiply. thanks (7m + 9)(8m^2 + m + 7)

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Question 242463: Multiply. thanks
(7m + 9)(8m^2 + m + 7)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

%287m%2B9%29%288m%5E2%2Bm%2B7%29 Start with the given expression.


7m%288m%5E2%2Bm%2B7%29%2B9%288m%5E2%2Bm%2B7%29 Expand.


Distribute.


56m%5E3%2B7m%5E2%2B49m%2B72m%5E2%2B9m%2B63 Multiply.


56m%5E3%2B79m%5E2%2B58m%2B63 Now combine like terms.


So %287m%2B9%29%288m%5E2%2Bm%2B7%29 expands to 56m%5E3%2B79m%5E2%2B58m%2B63.


In other words, %287m%2B9%29%288m%5E2%2Bm%2B7%29=56m%5E3%2B79m%5E2%2B58m%2B63.