Ta có:
\(x^4+2013x^2+2012x+2013=x^4+2013x^2+2013x+2013-x\)
\(=\left(x^4-x\right)+\left(2013x^2+2013x+2013\right)\)
\(=x\left(x^3-1\right)+2013\left(x^2+x+1\right)\)
\(=x\left(x-1\right)\left(x^2+x+1\right)+2013\left(x^2+x+1\right)\)
\(=\left(x^2-x+2013\right)\left(x^2+x+1\right)\)
phan tich da thuc thanh nhan tu:
a) (a-b)2012x+2012y-ax-ay
b) (a-b) 144y2-x2+2x-1
phan tich da thuc thanh nhan tu: 4x^4-32x^2+1
phan tich da thuc thanh nhan tu
x^5+x+1
phan tich da thuc thanh nhan tu:x^8+64
Phan tich da thuc thanh nhan tu : x2 - 4x -y2+4
phan tich da thuc sau thanh nhan tu: x5+x+1
phan tich da thuc thanh nhan tu x^5+x+1
x^8+x^4+1
phan tich da thuc thanh nhan tu
phan tich da thuc thanh hinh nhan tu X2+x-1
