Question

√3(√12-2√27)= dati raspuns corect va rog feumos

Answer 1

= √3· (√4·√3 - 2·√9·√3 ) = 
 =√3 ·( 2√3 - 2·3·√3 ) = 
 = √3· ( 2√3 - 6√3 ) = 
= √3 · ( - 4√3 ) = 
= - 4·√9 = - 4 ·3 =  - 12

Answer 2

$\sqrt{3} ( \sqrt{12} -2 \sqrt{27} )= \sqrt{3} (2 \sqrt{3} -2 \cdot 3 \sqrt{3} )= \sqrt{3} (2 \sqrt{3} -6 \sqrt{3} )= \\ =2 \cdot 3-6 \cdot 3=6-18=-12$