根式運算，請給我完整算式

https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xpa1/v/t1.0-9/s552x414/1508063_1492923314329902_6134452926039430217_n.jpg?oh=9ead4f2d6afaa44de4f84df03ce9ae44&oe=551C3814&__gda__=1427639282_c192ab4df6e2ebb32c64ff937ea940f9

圖片參考：https://s.yimg.com/lo/api/res/1.2/U9WruRnRJTiBLrDzlf2GDA--/YXBwaWQ9dHdhbnN3ZXJzO3E9ODU-/https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xpa1/v/t1.0-9/s552x414/1508063_1492923314329902_6134452926039430217_n.jpg?oh=9ead4f2d6afaa44de4f84df03ce9ae44&oe=551C3814&__gda__=1427639282_c192ab4df6e2ebb32c64ff937ea940f9

[2√7 +(2√3)/4]*2 +(2√7 +√3)
= 4√7 +√3 +(2√7)/7 +√3
= (4 +2/7)√7 +2√3
= (30/7)√7 +2√3

首先展開
2√7*2+2√3/4*2+2/√7+√3
=4√7+2√3/2+2√7/7+√3
=30√7/7+4√3/2


補充
2/√7分子分母上下同*√7把分母的根號去掉=2√7/7