Question

(x4-2x2+1):(1-x2)

Answer 1

\(\left(x^4-2x^2+1\right):\left(1-x^2\right)\\ =\left(x^2-1\right)^2:\left(1-x^2\right)\\ =\left(1-x^2\right)^2:\left(1-x^2\right)\\ =1-x^2\)

Answer 2

( x^4 − 2 x^2 + 1 ) : ( 1 − x^2 ) = ( x^2 − 1 ) 2 : ( 1 − x^2 ) = ( 1 − x^2 ) 2 : ( 1 − x^2 ) = 1 − x^2