2ax的平方-10ax-100a 怎么十字相乘法?
问题描述:
2ax的平方-10ax-100a 怎么十字相乘法?
答
2aX^2-10aX-100a=2a(X^2-5X-50)=2a(X-10)(X+5)
2ax的平方-10ax-100a 怎么十字相乘法?
2aX^2-10aX-100a=2a(X^2-5X-50)=2a(X-10)(X+5)