3分之2根号9x+6根号4分之x怎么解
问题描述:
3分之2根号9x+6根号4分之x怎么解
答
3/2根号9x+6根号x/4
=2/3*3根号x+6根号x/2
=2根号x+3根号x
=5根号x
答
2/3√9x+6√x/4
=2√x+3√x
=5√x