Question

if x=√2-1 and y=√2-1 than find x^2 +y^2 + xy
fast please ​

Answer 1

Answer:

I hope it will help you.

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Answer 2

Answer:

$\bf{9-6√2}$

Step-by-step explanation:

Given that,

$\bf{x=√2 - 1}$

$\bf{y=√2-1}$

So,

$\bf{x=y}$

We need to find =

x²+y²+xy

I. E. :

x²+x²+x² (since x=y)

=3x²

x²= (√2 -1)²

x²=2+1-2√(2)

3x²=3(3-2√2)

=>9-6√2