Question

A) efectuati 2√132:√11+14√30:(2√10)+9√21:√7-6×√3=
B)(3√2-√5)×√3+√2×(√3-√20)+√5×(√3+√8)=
C) √48×(2√75-√27+2√27)-√48×√12=
D)√243×√147 - 2√3×7√3+3√8×(5√72+6√128)


Cine reuseste sa rezolve acestea pe toate si corect e cel mai bun 

Answer 1

A)$2 \sqrt{12} +7 \sqrt{3} +9 \sqrt{3} -6 \sqrt{3}$
 =$4 \sqrt{3} +7 \sqrt{3} +9 \sqrt{3} -6 \sqrt{3}$
=$14 \sqrt{3}$