A) (X4 + 8X2 + 16)
Bài 11: câu nào sai: a) (x
4
+ 8x2
+ 16) : (x2
+ 4) = x2
+ 4 ; b) ( x3
+1) : (x2
- x+1) = x - 1 c) (25 - x2
) : (x+5) = 5 – x ; d) 9(x - 2y)10
: (3x –-6y) = 3(x- 2y)9
4
+ 8x2
+ 16) : (x2
+ 4) = x2
+ 4 ; b) ( x3
+1) : (x2
- x+1) = x - 1 c) (25 - x2
) : (x+5) = 5 – x ; d) 9(x - 2y)10
: (3x –-6y) = 3(x- 2y)9