Answer :
Step 3: Add the coefficients, the coefficients of the root 2 are 7 and 2.
[tex](7+2)\sqrt[]{2}=9\sqrt[]{2}[/tex]Therefore, the answer is 9 √2
Step 3: Add the coefficients, the coefficients of the root 2 are 7 and 2.
[tex](7+2)\sqrt[]{2}=9\sqrt[]{2}[/tex]Therefore, the answer is 9 √2