a, (y-x^2)^2:(y-x^2) =y-x^2
b, (x-y^2)^2:(y-x^2)=x-y^2
học tốt
Bài làm:
a) \(\left(x^4-2x^2y+y^2\right)\div\left(y-x^2\right)\)
\(=\left(x^2-y\right)^2\div\left(y-x^2\right)\)
\(=\left(y-x^2\right)^2\div\left(y-x^2\right)\)
\(=y-x^2\)
b) \(\left(x^2-2xy^2+y^4\right)\div\left(x-y^2\right)\)
\(=\left(x-y^2\right)^2\div\left(x-y^2\right)\)
\(=x-y^2\)
a) ( x4 - 2x2y + y2 ) : ( y - x2 )
= ( x2 - y )2 : ( y - x2 )
= ( x2 - y )2 : ( x2 - y )
= x2 - y
b) ( x2 - 2xy2 + y4 ) : ( x - y2 )
= ( x - y2 )2 : ( x - y2 )
= x - y2
mình sai câu a) '-'
( x4 - 2x2y + y2 ) : ( y - x2 )
= ( x2 - y )2 : ( y - x2 )
= ( y - x2 )2 : ( y - x2 )
= y - x2
a, \(\left(x^4-2x^2y+y^2\right):\left(y-x^2\right)\)
\(=\left(x^2-y\right)^2:\left(y-x^2\right)=\left(y-x^2\right)^2:\left(y-x^2\right)=y-x^2\)
b, \(\left(x^2-2xy^2+y^4\right):\left(x-y^2\right)\)
\(=\left(x-y^2\right)^2:\left(x-y^2\right)=x-y^2\)