(0.12x^4y³-0.9x²y³)÷0.3x²y²等于?
问题描述:
(0.12x^4y³-0.9x²y³)÷0.3x²y²等于?
答
(0.12x^4y³-0.9x²y³)÷0.3x²y²
=0.4x²y-3y