Question

examine whether the following number are rational or irrational (2-√2)(2+√2) with steps​

Answer 1

From Japan

It was just a joke

I derived a anime Demon Slayer

Die hard fan Answer:

Both are rational

Step-by-step explanation:

They are in the form of $a^{2} - b^{2}$

= $2^{2} - \sqrt{2}^2$

then

= 4 - 2

= 2

So , 2 is a rational number

Hope these may help you !