Question

Evaluate by using a suitable identity :
(i) [6x + 7] [6x - 7]
(ii) [3a + 76] [3a - 76]
(iii) [- 11x + 12y][11x +12y]​

Answer 1

Answer:

i)(6x)^2-7^2

36x^2-49

ii)(3a)^2-76^2

9a^2-5776

iii)(12y)^2- (11x)^2

144y^2-121x^2

Hope it helped......