Question

Can someone please help me asap, thank youu!!!

Answer 1

2

Explanation:

Apply Difference of Two Squares formula:
`\left(a+b\right)\left(a-b\right)=a^2-b^2`:

`\implies (3+√(7) )(3-√(7) )=3^2-(√(7) )^2`

`=9 - 7`

`=2`