Question

phan tich da thuc thanh nhan tu

x^3+x+2

x^3-2x-1

Answer 1

1)

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

Answer 2

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

Answer 3

x³ + x + 2 = x³ + x + 1 + 1

= (x + 1)(x² + x + 1) + (x+1)

=(x+1)(x² +2x + 2)

x³ - 2x -1