作业帮√1/7 + √28 - √700 = - 55/7 √7 .
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 07:02:14
√1/7 + √28 - √700 = - 55/7 √7 .
√1/7 + √28 - √700 = - 55/7 √7 .
√1/7 + √28 - √700 = - 55/7 √7 .
√1/7 + √28 - √700
=(√7)/7+2√7-10√7
=(1/7+2-10）√7
＝- 55/7 √7
√1/7 + √28 - √700
=1/7 √7+2√7-10√7
=(1/7+2-10) √7
=- 55/7 √7
√1/7 + √28 - √700
=√（1*7）/（7*7） + √4*7 - √100*7
=1/7√7 + 2√7 - 10√7
=（1/7+2-10）√7
=55/7 √7