Question

I need help on this question!!

Answer 1

29

Explanation:

We can use the formula (a+b)(a-b)=a^2-b^2 to help us simplify this problem.

`(6-√(7))(6+√(7))\\= 6^2-(√(7))^2\\= 36-7\\=29`

I hope this helps! Please comment if you have any questions.