计算:(3x+1)(x+2)
问题描述:
计算:(3x+1)(x+2)
答
(3x+1)(x+2)
=3x²+x+6x+2
=3x²+7x+2
计算:(3x+1)(x+2)
(3x+1)(x+2)
=3x²+x+6x+2
=3x²+7x+2