Question

(7-√2)(7+√2) = ?
a.47
b.1
c.5
d.48​

Answer 1

Answer:

a)47 is the correct option

explanation

(a-b)(a+,b)=a²-b²

that is

7²-(√2)²

49-2

=47

Answer 2

Step-by-step explanation:

Here's the solution.

Hope it will help you.