Question

(a) (3x + 11) (3x - 11)
(c) (5ab - 2p) (5ab + 2p)
Simplify:
(a) (2x + 5)2 + (2x - 5)2
(d) (3y + 5x) (3y2 – 5x)
(b) (3x + 4)2 – (3x - 43
Show that
ta (4pq + 3)2 (4pq - 3)2 = 48pq?
(b) (a - b)(a + b) + (b-c)(b + c) + (c-a) (c + a) = 0
Using suitable identities, evaluate each of the following:
(a) 842
for 912
(c) 104 x 96
(e) 1442 - 56 (f) 127 x 127 - 73 x 73
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Answer 1

1. a2-b2= (a+b)(a-b)》
2. $a {}2 - b{2}$