Question

[Vũ Duy Đạt]

làm ơn trả lời cho tui với

(2x^3 + x^2 + 10x + 30) : (2x + 1)

Answer 1

[hưng phúc]

\(\left(2x^3+x^2+10x+30\right):\left(2x+1\right)\)

\(=2x^3:\left(2x+1\right)+x^2:\left(2x+1\right)+10x:\left(2x+1\right)+30:\left(2x+1\right)\)

\(=2x^3:2x+2x^3:1+x^2:2x+x^2:1+10x:2x+10x:1+30:2x+30:1\)

\(=x^2+2x^3+\dfrac{1}{2}x+x^2+5+10x+15x+30\)

\(=2x^3+2x^2+\dfrac{51}{2}x+35\)

Answer 2

[duck]

=x^2+5 và dư 25 nha