Question

simplify root 2 minus 1 whole square​

Answer 1

Answer:

(√2-1)^2

= (√2)^2 + (1)^2 -2•(√2)•(1)

= 2 +1- 2√2

= 3-2√2

hope it's helpful......

Answer 2

=>$( \sqrt{2} - 1)^{2} \\ =>( \sqrt{2} )^{2} + ( 1)^{2} - 2( \sqrt{2} )(1) \\ =>2 + 1 - 2 \sqrt{2} \\ =>3 - 2 \sqrt{2}$

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