已知b-(1/2)a²=0,化简:(3ab+3b)/(a²+b)
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/06 10:34:36
![已知b-(1/2)a²=0,化简:(3ab+3b)/(a²+b)](/uploads/image/z/2096653-13-3.jpg?t=%E5%B7%B2%E7%9F%A5b-%EF%BC%881%2F2%EF%BC%89a%26%23178%3B%3D0%2C%E5%8C%96%E7%AE%80%EF%BC%9A%EF%BC%883ab%2B3b%EF%BC%89%2F%EF%BC%88a%26%23178%3B%2Bb%EF%BC%89)
x){}Kt07z3QM@iϴ3NL6NJ9P% MR>P-:b3*&`!hqFQv&D(`_\gu
bb+$[qFDZaRm
VA, Ѹ
已知b-(1/2)a²=0,化简:(3ab+3b)/(a²+b)
已知b-(1/2)a²=0,化简:(3ab+3b)/(a²+b)
已知b-(1/2)a²=0,化简:(3ab+3b)/(a²+b)
∵b-(1/2)a²=0
∴a²=2b
(3ab+3b)/(a²+b)
=3b(a+1)/(2b+b)
=a+1
解:
b=1/2a^2
(3ab+3b)/(a²+b)
=(3/2a^3+3/2a^2)/(3/2a^2)
=a+1