Respuesta :

ANSWER IS
√7x

Step by step explaination

​1 Simplify
3
x
2
+
4
x
2
3x
​2
​​ +4x
​2
​​ to
7
x
2
7x
​2
​​ .
Step two

Use this rule: ab=ab√ab​​ =√a√b

​​ √x²​​√7

Simplify ​​ √x²​​ to x

x√7
​​
Regroup terms

√7x