Question

Simplify (1+√3)(1-√3)​

Answer 1

- 2

Explanation:

the factors of a difference of square are

a² - b² = (a + b)(a - b)

(1 +
`√(3)` )(1 -
`√(3)` ) ← are the factors of a difference of squares , then

(1 +
`√(3)` )(1 -
`√(3)` )

= 1² - (
`√(3)` )²

= 1 - 3

= - 2