Explicație pas cu pas:
n=(2x+1)5x²-(2x+1)(x²+1)=
10x³+5x²-2x³-2x-x²-1=
n=8x³+4x²-2x-1
[tex](2x + 1) \times (5x ^{2} - x ^{2} + 1) = (2x + 1) \times (4x ^{2} + 1)[/tex]
