Question

If p(x) = x - 2root2x +1, find p(2/2).​

Answer 1

p ( x ) = x² - 2√2x + 1

p ( 2√2 ) = ( 2√2 )² - ( 2√2 × 2√2 ) + 1

p ( 2√2 ) = ( 8 )  - ( 8 ) + 1  

p ( 2√2 ) = 1