Akta
18 Sep 2016
Carry out the multiplication of the expressions in each of the following pairs.
(i) 4p, q + r (ii) ab, a − b (iii) a + b, 7a2b2
(iv) a2 − 9, 4a (v) pq + qr + rp, 0
BaO
BaSO4
BaS
BaCO3
or
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