1.

Add the following.(i) ab −bc, bc − ca, ca − ab(ii) a − b+ ab, b − c + bc, c −a + ac(iii) 2p2q2− 3pq + 4, 5 + 7pq − 3p2q2(iv) l2+ m2, m2 + n2,n2 + l2, 2lm + 2mn+ 2nl

Answer»

Add the following.


(i) ab −
bc, bc − ca, ca − ab


(ii) a − b
+ ab, b − c + bc, c −
a + ac


(iii) 2p2q2
− 3pq + 4, 5 + 7pq − 3p2q2


(iv) l2
+ m2, m2 + n2,
n2 + l2, 2lm + 2mn
+ 2nl


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