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Michelle borrowed 3r³ +5r² + 18r+ 20 dollars from her brother. If she paid back 3r³ + 2r² - 2r + 11 dollars, then how much more money does she still owe her brother?

Michelle borrowed 3r³ +5r² + 18r+ 20 dollars from her brother. If she paid back 3r³ + 2r² - 2r + 11 dollars, then how much more money does she still owe her brother?
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Michelle borrowed 3r³ +5r² + 18r+ 20 dollars from her brother. If she paid back 3r³ + 2r² - 2r + 11

dollars, then how much more money does she still owe her brother?

User Fabio Nettis
by
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1 Answer

2 votes
Power to the number 4 should add up to 7 so 5+7-4=55
User Sadesh Kumar N
by
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