(1/5X+1/10Y)^2
问题描述:
(1/5X+1/10Y)^2
答
(1/5X+1/10Y)^2
=1/25x²+1/25xy+1/100y²
(1/5X+1/10Y)^2
(1/5X+1/10Y)^2
=1/25x²+1/25xy+1/100y²