Question

Phân tích đa thức thành nhân tử :

A = –x – z(x – y) + y

Answer 1

\(A=-x-z\left(x-y\right)+y=-x-xz+zy+y=-x\left(1+z\right)+y\left(1+z\right)=\left(1+z\right)\left(y-x\right)\)

Answer 2

A = -(x-y)-z(x-y)=(x-y)(-1-z)=(y-x)(z+1)

Answer 3

A = -x - z(x - y) + y

A = -x - zx + zy + y

A = -(-x - zx + zy + y)

A = x + zx - zy - y

A = x + zx - y - zy

A = x(1 + z) - y(1 + z)

A = (x - y)(1 + z)

Answer 4

Ta có: \(A=-x-z\left(x-y\right)+y\)

\(=-\left(x-y\right)-z\left(x-y\right)\)

\(=-\left(z+1\right)\left(x-y\right)\)