Bai 1: Phain tich da thic thank nhan tie' (4) Phio - Dicamon

Question

Bai 1: Phain tich da thic thank nhan tie' (4) Phioing pháp otät nhain ti chung 1) x^4-x^5  2, -8 x^2 y^2-12 x y^3-4 x y^2 3) (x-y)^3-x^3+y^3 4) 3 x(x-y)-2 y(x-y

Answer

.  = 2 x ( x - 1  ) + ( x - 1  )   =    2 ( x - 1  ) ( 2 x + 1  )  .   10)  .  7 x ( x - y  ) + 2 ( y - x  )^2  = 7 x ( x - y  ) - 2 ( x - y  )^2  = ( x - y  ) [ 7 x - 2 ( x - y

help mk nhe ghi cac buoc giai tung cau nhe a