Question

( -2-√ 3)( -2+√3 ) when simplified is​

Answer 1

Answer:

(-2-√3)(-2+√3) = (-2)² - (√3)²  [∵(a+b)(a-b) = a²-b²]

                      = 4 - 3

                      = 1

Answer 2

let-2 be a and √3 be b,

then we know that :

(a+b) (a-b) =a^2-b^2,

therefore,

(-2-√3) (-2+√3)

= (-2) ^2-(√3) ^2

= 4-3

=1 Answer