a)(a-b)2012x+2012y-ax-ay
=(a-b)[x(2012-a)+y(2012-a0]
=(a-b)(2012-a)(x+y)
b)(a-b)144y2-x2+2x-1
=(a-b)[144y2-(x2-2x+1)]
=(a-b)[(12y)2-(x-1)2]
=(a-b)(12y+x-1)(12y-x+1)
phan tich da thuc sau thanh nhan tu:a^2.b^2.(a-b)+b^2.c^2(b-c)+a^2.c^2 .(c-a)
1,phan tich da thuc thanh nhan tu
X4+2013x2+2012x+2013
1) phan tich da thuc thanh nhan tu
a)ax^2+a^2y-07x-7y
b)ax^2+ay-bx^2-by
c)x^2+5x+6
(a+1).(a+b).(a+b).(a+7)-15 phan tich da thuc thanh nhan tu
phan tich cat da thuc sau thanh nhan tu
a) x^4 + 1 - 2x^2
phan tich da thuc thanh nhan tu abc+ab+ac+bc+a+b+c+1
Phan tich da thuc thanh nhan tu : x2 - 4x -y2+4
phan tich da thuc thanh nhan tu
a) m^2 -7m +12
b) 2x^4 -x^3 -54x +27
ab(a+b)+bc(b+c) phan tich da thuc thanh nhan tu
