Telangana SCERT Solution Class VIII (8) Math Chapter 11 Algebraic Expressions Exercise 11.4
Contents
(1) Select a suitable identity and find the following products
(i) (3k + 4l) (3k + 4l)
(ii) (ax2 + by2) (ax2 + by2)
(iii) (7d – 9e) (7d – 9e)
(iv) (m2 – n2) (m2 + n2)
(v) (3t + 9s) (3t – 9s)
(vi) (kl – mn) (kl + mn)
(vii) (6x + 5) (6x + 6)
(viii) (2b – a) (2b + c)
(2) Evaluate the following by using suitable identities:
(i) 3042
(ii) 5092
(iii) 9922
(iv) 7992
(v) 304 × 296
(vi) 83 × 77
(vii) 109 × 108
(viii) 204 × 206
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