Math, asked by bhumi8550, 1 year ago

please answer I will mark you as the BRAINLIEST

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Answered by freefire11proplayers

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Step-by-step explanation:

(7abc+b2)(7-bc)+c(2b3-9ab)
7abc(7-bc)+b2(7-bc)+c(2b3-9ab)
49abc-7ab2c2+7b2-b3c+2b3c-9ab

. 40abc-7ab2c2+7b2+b3c

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