Answer:
False
Because the radicals are not like terms
Step-by-step explanation:
The radical expressions are:
![\sqrt[]{2}\text{ and }\sqrt[]{12}](https://img.qammunity.org/2023/formulas/mathematics/high-school/p2cot3pisr6ak1kdbwhuc0j8ny9beq3mbs.png)
Note that only like radicals can be combined using addition or subtraction
For examples:
![a\sqrt[]{b}+c\sqrt[]{b}=(a+c)\sqrt[]{b}](https://img.qammunity.org/2023/formulas/mathematics/high-school/cqr8h8ymc3f979ztx0q64nkamsnr5fexo9.png)
The addition is possible because the same term (b) is inside the root
operator
![\begin{gathered} \text{For }\sqrt[]{2}\text{ and }\sqrt[]{12} \\ \sqrt[]{12}=\sqrt[]{4*3}=2\sqrt[]{3} \\ \sqrt[]{2}\pm\sqrt[]{12}=\sqrt[]{2}\pm2\sqrt[]{3} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/ersavsogr5lhtxnzu8xa3epjjqld4nb7hh.png)
Since the numbers under the roots are not the same, the radicals are not line radicals, hence cannot be combined by addition or subtraction