Question

Can you help me,pls

Answer 1

x^4 +2 +x^-4

Explanation:

The square of a binomial is a form worthy of memorization.

(a +b)² = a² +2ab +b²

Application

Here, you have a binomial with a=x² and b=1/x². Using these values in the pattern, we have ...

`\left(x^2+(1)/(x^2)\right)^2=(x^2)^2+2(x^2)(1)/(x^2)+\left((1)/(x^2)\right)^2\\\\=\boxed{x^4+2+(1)/(x^4)}`