Question

(√3+2)²+4(5-√3)-(2√7+3)(2√7-3)

Answer 1

= (√3 +2) (√3+2)+ 20 −4√3− (2√7+3)(2√7−3) =

=> 3 + 4√3+4 +20−4√3 − (28 −9 )=

=> 3 + 4 + 20 − 19 =

=> 8

Answer 2

= (√3 +2) (√3+2)+ 20 −4√3− (2√7+3)(2√7−3) =

=> 3 + 4√3+4 +20−4√3 − (28 −9 )=

=> 3 + 4 + 20 − 19 =

=> 8