Question

if x=√2-1 than x^2 solve
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Answer 1

Answer:

=3-2$\sqrt{2}$

Step-by-step explanation:

(a-b)^2 = a^2+b^2-2ab

= 2+1-2*1*$\sqrt{2}$

=3-2$\sqrt{2}$

Answer 2

Answer:

3-2√2

Step-by-step explanation:

We will use the identity of (a-b)^2 to answer this question.

a-b the whole squared is equal to a square + b square - 2ab.

thus {√2 - 1}whole squared = 2 + 1 - 2√2

= 3 - 2√2