5x²+11xy+2y² 十字相乘法
问题描述:
5x²+11xy+2y² 十字相乘法
答
5x²+11xy+2y²
=(5x+y)(x+2y)
答
啊晕 (5X+Y)(X+2Y)
答
5x²+11xy+2y² = (5x+y)(x+2y)
十字是:
5 1
1 2
答
5 1
1 2
=(5x+y)(x+2y)