Question

Phân tích đa thức thành nhân tử:

Answer 1

M=3.(2x-3y)

N=3xy(y-3x)

O=(y-6)(x-y)

P=(x-2)(3x+1)

Q=(y+2)(3x+1)

R=(x^2 -4)(x-3)

S=(x^2 -2x+1)y

T=(x-2)^2 .(x-7)

 

Answer 2

m) 6x - 9y

<=> 3(2x - 3y)

n) 3xy² - 9x²y

<=> 3xy(y - 3x)

o) x(y - 6) + y(6 - y)

<=> x(y - 6) - y(y - 6)

<=> (-x - y)(6 + y)

p) x(3x - 1) + 2(1 - 3x)

<=> x(3x - 1) - 2(3x - 1)

<=> (-x - 2)(1 - 3x)

q) y(3x - 1) - 2(1 - 3x)

<=> y(3x - 1) + 2(3x - 1)

<=> (y + 2)(3x - 1)

r) x²(x - 3) + 4(3 - x)

<=> x²(x - 3) - 4(x - 3)

<=> (x² - 4)(x - 3)

s) x²y - 2xy + y

<=> x² - 2xy + y²

<=> (x - y)²

t) x²(x - 7) + 4x(7 - x) + 4(x - 7)

<=> x²(x - 7) - 4x(x - 7) + 4(x - 7)

<=> (x² - 4x + 4)(x - 7)