Q4) (a) Subtract 4a-7ab+3b+12 from 12a-9ab+5b-3
(b) Subtract 3xy+5yz-7zx from 5xy-2yz-2zx+10xyz
(c) Subtract 4p^2q-3pq+5pq^2-8p+7q-10 from 18-3p-11q+5pq-2pq^2+5p^2q
Solution:
(a)
(b)
(c)
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