Question

Its urgent plzz

find products:-
1)(2/5ab-c)(2/5ab+c)
2)(x-1/x)(x+1/x)(x^2+1/x^2)​

Answer 1

Answer:

1)(2/5ab)^2-(c)^2

(4/25)*a^2*b^2-c^2

2)x^2-(1/x)^2(x^2+1/x^2)

x^4-1/x^4