Question

Multiply.
(9√3+√5)(9√3+√5)
Simplify your answer as much as possible.

Answer 1

`248 + 18√(15)`

Explanation:

`(9√(3)+√(5) )(9√(3)+√(5) )=(9√(3)+√(5) )^2`

`81 \cdot 3 + 2\cdot 9√(3) \cdot √(5) + 5`

`243 + 18√(15) + 5`

`248 + 18√(15)`