Question

Factorise::::::x^4+ 64​

Answer 1

Step-by-step explanation:

x^4+64

=(x^2)^2+(8)^2

=(x^2-8)^2+2×x^2×8

Answer 2

a^2+b^2 = (a+b)^2 - 2ab
Here a=x^2, b=8
So, ans is
(x+8)^2 -2(x^2)(8)
(x+8)^2- 16x^2