Question

Using proper identities, factorise
34
(i) x⁴-y⁴
(ii) 64m⁴-343n³
​

Answer 1

1.x^4 - y^4

We can write x^4 = (x^2)^2

(x^2)^2 - (y^2)^2

Now we will apply formula a^2-b^2 = (a+b)(a-b)

(x^2 + y^2) (x^2 - y^2)

(x^2 + y^2) (x+y) (x-y)

Hope it will help you ! .....