Phân tích đa thức thành nhân tử
bai 1 phan tich da thuc thanh nhan tu
A ) 48x^3y^3-32x^2y^2
B ) ax-bx +ab-x^2
C) 12a^2b-18ab^2-30b^2
D) 27a^2(b-1)-9a^3(1-b)
Bai 2 tim x biet
A) 5(x-3)-2x(3x+x)=0
B) 6x(a^2-2) - (2-x^2 )=0
C) 4x(x-2013)-x +2013=0
D) 27a^2(b-a ) -9a^3(1-b)
Bai 3 phan tich da thuc thanh nhan tu
A) 16x^-8x+1_3(4x-1)
B) 27x^+8
C) -16x^4y^6 - 24x^5y^5 - 9 x^6y^4
d) (ax+by)^2= x+1
Bai 4 phan tich da thuc thanh nhan tu
A) (a^2=b^2-5)^2 - 2 (ab+2)^2
b) (4a^2 -3a_18)^2 - (4a^2+3a^2)
c) -(x+2)+3(x^2-4)
d) 125a^3-27b^3