Question

find the value of (√7+2) (√7-2)​

Answer 1

Answer:

=(√7)²-(2)²

=7-4

=5

5 is the correct answer

Answer 2

Answer:

a²-b²= (a+b) (a-b)

$( \sqrt{7 {} } )2 - (2)2$

$\sqrt{7 \times 7 } - 4$

7 - 4

3 answer