Question

phan tich da thuc thanh nhan tu:x^4+x^3+2x^2+x+1

Answer 1

\(x^4+x^3+2x^2+x+1=x^4+x^2+x^3+x+x^2+1\)

\(=x^2\left(x^2+1\right)+x\left(x^2+1\right)+1\left(x^2+1\right)\)

\(=\left(x+1\right)\left(x^2+x+1\right)\)

Answer 2

cái cuối là \(\left(x^2+1\right)\left(x^2+x+1\right)\)