1.

Simplify. (i) (a2 − b2)2 (ii) (2x +5)2 − (2x − 5)2 (iii) (7m − 8n)2 + (7m + 8n)2 (iv) (4m + 5n)2 + (5m + 4n)2 (v) (2.5p − 1.5q)2 − (1.5p − 2.5q)2 (vi) (ab + bc)2 − 2ab2c (vii) (m2 − n2m)2 + 2m3n2

Answer»

Simplify.


(i) (a2
b2)2 (ii) (2x +5)2
− (2x − 5)2



(iii) (7m
8n)2 + (7m + 8n)2
(iv) (4m + 5n)2 + (5m + 4n)2



(v) (2.5p
1.5q)2 − (1.5p − 2.5q)2



(vi) (ab + bc)2
− 2ab2c (vii) (m2
n2m)2 + 2m3n2



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