Question

Bài 1: Phân tích các đa thức sau thành nhân tử

a) ( 2a + 3 ) . ( 2a + 3 ) . y + ( 2a + 3)

b) ( a - b ) . x + ( b-a ) . y - ( a + b )

c) ( 4x - y ) . ( a + b ) + ( 4x - y ) . ) c - 1 )

d) ( 4 + b - c ) . x² - ( c - a - b ) . x 

Làm hộ tui nha .Tui đang cần gấp

Answer 1

\(\left(2a+3\right)\left(2a+3\right)y+\left(2a+3\right)\)

\(=\left(2a+3\right)[y\left(2a+3\right)+1]\)

\(=\left(2a+3\right)\left(2ay+3y+1\right)\)

Answer 2

\(\left(a-b\right)x+\left(b-a\right)y-\left(a-b\right)\) (Sửa đề)

\(=\left(a-b\right)x-\left(a-b\right)y-\left(a-b\right)\)

\(=\left(a-b\right)\left(x-y-1\right)\)

Answer 3

\(\left(4x-y\right)\left(a+b\right)+\left(4x-y\right)\left(c-1\right)\)

\(=\left(4x-y\right)[\left(a+b\right)+\left(c-1\right)]\)

\(=\left(4x-y\right)\left(a+b+c-1\right)\)

Answer 4

\(\left(4+b-c\right)x^2-\left(c-a-b\right)x\)

\(=x\left(4x+bx-cx\right)-x\left(c-a-b\right)\)

\(=x\left(4x+bx-cx-c+a+b\right)\)