from the sum of 9a³ -4a²p + b and -7a²b + 11b² subtract 6a³ - 15ab
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it is compulsory
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Answer:
3a³ - 11a²b + 11b² - 15ab + b
Step-by-step explanation:
= 9a³ - 6a³ - 4a²b - 7a²b + b + 11b² - 15ab
= 3a³ - 11a²b + 11b² - 15ab + b
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