Question

There is a number 'x' such that x×x is irrational but x×x×x×x is rational give a example for it

Answer 1

Here x×x is irrational------------------------(1)

x×x×x×x

Here from equation 1

x×x is irrational

(x×x)×(x×x)

Irrational×Irrational

Here we know that irrational when gets multiplied by irrational

example root2×root=2 which is rational

therefore it is rational