Question

Work out
(2+√3)(2−√3)

Answer 1

Work out
(2+√3)(2−√3)

=1

Answer 2

1

Explanation:

Given

(2 +
`√(3)` )(2 -
`√(3)` ) ← expand factors using FOIL

= 2² - (
`√(3)` )²

= 4 - 3

= 1