合并多项式:2/3a²-6a³+5a-1/4+5a³-1/2-4/3a²

合并多项式:2/3a²-6a³+5a-1/4+5a³-1/2-4/3a²
合并多项式:2/3a²-6a³+5a-1/4+5a³-1/2-4/3a²

合并多项式:2/3a²-6a³+5a-1/4+5a³-1/2-4/3a²
原式=(-6+5)a³+(2/3-4/3)a²+5a-(1/4+1/2)
=-a³-2/3a³+5a-3/4