化简:(1/2a^4x²-1/3a³x²-3/4a³x^4)÷(-2/3a²)

问题描述:

化简:(1/2a^4x²-1/3a³x²-3/4a³x^4)÷(-2/3a²)

像这种题型只需注意未知数的次数的变化,以及系数(符号)的变化
(1/2a^4 x²-1/3a³x²-3/4a³x^4)÷(-2/3a²)
= (1/2a^4 x²)÷(-2/3a²) -(1/3a³x²)÷(-2/3a²) - (3/4a³x^4)÷(-2/3a²)
= -3a²x² +(1/2)ax² +(9/8)ax^4

(1/2a^4 x²-1/3a³x²-3/4a³x^4)÷(-2/3a²)
= (1/2a^4 x²)÷(-2/3a²) -(1/3a³x²)÷(-2/3a²) - (3/4a³x^4)÷(-2/3a²)
= -3a²x² +(1/2)ax² +(9/8)ax^4