4−7ab+3b+12 from 12a−9ab+5b−3
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Answer:
4-7ab+3b+12 from 12a-9ab+5b-3
12a-9ab+5b-3-(4-7ab+3b+12)
12a-9ab+5b-3-4+7ab-3b-12
12a-9ab+7ab+5b-3b-3-4-12
12a-2ab+2b-19Ans.
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