(_____+4y)²=1/4x²+_______+_________
问题描述:
(_____+4y)²=1/4x²+_______+_________
答
(__1/2x___+4y)²=1/4x²+__4y/x_____+___16y²______
(_____+4y)²=1/4x²+_______+_________
(__1/2x___+4y)²=1/4x²+__4y/x_____+___16y²______