Question

Bài 1: Áp dụng hằng đẳng thức 

a) ( x^4-2x^2y+y^2) : (y-x^2)

b) (x^2 -2xy^2+y^4) : (x-y^2)

Answer 1

a, (y-x^2)^2:(y-x^2) =y-x^2

b, (x-y^2)^2:(y-x^2)=x-y^2

học tốt

Answer 2

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) \(\left(x^2-2xy^2+y^4\right)\div\left(x-y^2\right)\)

\(=\left(x-y^2\right)^2\div\left(x-y^2\right)\)

\(=x-y^2\)

Answer 3

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

Answer 4

mình sai câu a) '-'

( x⁴ - 2x²y + y² ) : ( y - x² )

= ( x² - y )² : ( y - x² )

= ( y - x² )² : ( y - x² )

= y - x²

Answer 5

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, \(\left(x^2-2xy^2+y^4\right):\left(x-y^2\right)\)

\(=\left(x-y^2\right)^2:\left(x-y^2\right)=x-y^2\)