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Mathematics, 24.11.2021 14:00 7841784

ADD the following 1. 12a²b² , -7a²b² and 9a²b²
2. 4x²y , -3xy² , -5xy² , 5x²y

Subtract the following

1. -10abc from 10abc
2. -5y from y²

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ADD the following 1. 12a²b² , -7a²b² and 9a²b²
2. 4x²y , -3xy² , -5xy² , 5x²y

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