Exercise - 11.4
lect a suitable identity and find the following products
a (3k +41) (3k + 40
(ii) (ax+ by?) (ax? + by?)
(7d-9e) (7d-9e) (iv) (m? - n?) (m+n?)
(W) (3t+95) (3t-as) (vi) (kl – mn k mi
(vii) (6x + 5) (6x + 6) (viii) (26-a) (2b + c)
Evaluate the following by using suitable identities:
19304² (1) 509² (M) 992²
13048 206 G 838 77
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in the first question couldn't understand your 5th , 6th and 8th problem....so answered remaining... and in the second question , couldn't understand the last one ....
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