问两道分解公因式的题3a²-3b²5x²y-10xy²+5y三次方

问两道分解公因式的题3a²-3b²5x²y-10xy²+5y三次方
问两道分解公因式的题
3a²-3b²
5x²y-10xy²+5y三次方

问两道分解公因式的题3a²-3b²5x²y-10xy²+5y三次方
3a²-3b²
=3(a²-b²)
=3(a+b)(a-b)
5x²y-10xy²+5y³
=5y(x²-2xy+y²)
=5y(x-y)²