Question

bài1: 4xy-8x^2y^2+12x^3y^3

bài2:x(x+1)+5(x+1)

bài3:x(x+3)-y(x+3)

mấy bạn giúp mình với ạ

 

Answer 1

2: x(x+1)+5(x+1)

=(x+1)(x+5)

3: x(x+3)-y(x+3)

=(x+3)(x-y)

1:

\(=4xy\cdot1-4xy\cdot2xy+4xy\cdot3x^2y^2\)

=4xy(1-2xy+3x^2y^2)

Answer 2

Bài 1:

\(4xy-8x^2y^2+12x^3y^3\)

\(=4xy\cdot1-4xy\cdot2xy+4xy\cdot3x^2y^2\)

\(=4xy\cdot\left(1-2xy+3x^2y^2\right)\)

Bài 2:

\(x\left(x+1\right)+5\left(x+1\right)\)

\(=\left(x+1\right)\left(x+5\right)\)

Bài 3:

\(x\left(x+3\right)-y\left(x+3\right)\)

\(=\left(x+3\right)\left(x-y\right)\)