Question

Factorise x6/343+343/x6
Please answer I will mark as brainliest​

Answer 1

Answer:

I think it will be 6x to the power minus 12

Answer 2

(x6/343) + (343/x6)

Above terms can be written as,

(x2/7)3 + (7/x2)3

We know that, a3 + b3 = (a + b) (a2 – ab + b2)

Where, a = (x2/7), b = (7/x2)

Then, (x2/7)3 + (7/x2)3 = [(x2/7) + (7/x2)] [(x2/7)2 – ((x2/7) × (7/x2)) + (7/x2)2]

= [(x2/7) + (7/x2)] [(x4/49) – 1 + (49/x4)]