2㎡-7m -3因式分解怎么做

2024-12-31 02:29:35
推荐回答(1个)
回答1:

2m²-7m-3
=2(m²-7/2m-3/2)
=2{(m-7/4)²-73/16}
=2(m-7/4+√73/4)(m-7/4-√73/4)