What is the product of the radical expression?

(7 +sqrt7)

a . _49 _ 42 sqrt7
b . _49 + 13 sqrt7
c . _35 _ 42 sqrt7
d . _6 + sqrt7

option (b) is correct

The product of and is

Step-by-step explanation:

Given radicals and

WE have to find the product of two given radicals

Consider

Using property of algebra,

, We have ,

Simplifying further , we get,

Adding similar terms , we get,

Thus, the product of and is

Thus, option (b) is correct