Factorize : (1) ab plus 4a - 3b-12 . (2) 15pq plus 15 plus 9q plus 25 q. (it's to FACTORIZE)
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I don't know the 2nd one sorry but 1st one is correct
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ab + 4a - 3b - 12
a(b+4) - 3(b+4)
(a-3) - (b+4)
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