2. sum of 30 + 4ab+26² and
4a2 + 3ab-b?
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(30+4ab+26²) + (4a²+3ab-b)
30+4ab+26²+4a²+3ab-b
30+26²+4a²+4ab+3ab-b
30+26²+4a²+7ab-b
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30+26²+4a²+7ab-b is the answer.
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