Question

Find the following by using Identity-II.
(0)
(x-7)2
(ii)
(50 - 462
(iii)
77 2y
4 3
(iv) (8mn - 3p9)
(v)
(0.1% - 0.5y)
(vi)
(a² – 62)2​

Answer 1

Step-by-step explanation:

I) (x-7)^2

x^2-2*x*7-7^2

x^2-14x-49

II) (5a-4b) ^2

5a^2-2*5a*4b-4b^2

25a^2-40ab-16b^2

I hope it is clear