Question

Answer 1

Bài 2: 

a: \(=\left(x-1\right)\left(5x-3y\right)\)

b: \(=\left(x+5\right)\left(3x-2\right)\)

Answer 2

B1

a)3x²(2x-3)

b)x³(1-x)

c)2xy(2x-4y+9xy)

e)6x²(3y-2x)

f)3xy(y+2z)

B2:

a)(x-1)(5x-3y)

b)3x(x+5)+2(x+5)

(x+5)(3x+2)

thiếu nên bn thông cảm