已知A=3a²-a+4,B=2a²-3a-4,如果多项式C与A、B的和为6a²-5a+1,求C表示的多项式
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/30 01:53:33
![已知A=3a²-a+4,B=2a²-3a-4,如果多项式C与A、B的和为6a²-5a+1,求C表示的多项式](/uploads/image/z/1999805-5-5.jpg?t=%E5%B7%B2%E7%9F%A5A%3D3a%26%23178%3B-a%2B4%2CB%3D2a%26%23178%3B-3a-4%2C%E5%A6%82%E6%9E%9C%E5%A4%9A%E9%A1%B9%E5%BC%8FC%E4%B8%8EA%E3%80%81B%E7%9A%84%E5%92%8C%E4%B8%BA6a%26%23178%3B-5a%2B1%2C%E6%B1%82C%E8%A1%A8%E7%A4%BA%E7%9A%84%E5%A4%9A%E9%A1%B9%E5%BC%8F)
x){}KmՔ
-uMtl`\D]˚͛tɬw>dGFZNycLiγM/xdHLMR>=/lQulqFuu@@v&LMIh4hkCT#3/.H̳
jڄ-7gHmX o ,H
已知A=3a²-a+4,B=2a²-3a-4,如果多项式C与A、B的和为6a²-5a+1,求C表示的多项式
已知A=3a²-a+4,B=2a²-3a-4,如果多项式C与A、B的和为6a²-5a+1,求C表示的多项式
已知A=3a²-a+4,B=2a²-3a-4,如果多项式C与A、B的和为6a²-5a+1,求C表示的多项式
C+A+B=6a²-5a+1
∴C=6a²-5a+1-A-B=(6a²-5a+1)-(3a²-a+4)-(2a²-3a-4)
=6a²-5a+1-3a²+a-4-2a²+3a+4
=a²-a+1
6a²-5a+1-(3a²-a+4+2a²-3a-4)
=6a²-5a+1-5a²+4a
=a²-a+1
C=6a²-5a+1-A-B
=(6a²-5a+1)-(3a²-a+4)-(2a²-3a-4)
=6a²-5a+1-3a²+a-4-2a²+3a+4
=a²-a+1