Question

resposta com a conta d 2√27+5√12-2√75 simplificando os radicais

Answer 1

2.3√3 + 5.2√3 - 2.5√3=6√3+10√3-10√3=6√3

Answer 2

           $2 \sqrt{27} +5 \sqrt{12} -2\sqrt{75} \\ \\ =2 \sqrt{9x3} +5\sqrt{4x3} -2 \sqrt{25x3} \\ \\ =(2.3+5.2-2.5) \sqrt{3} \\ \\ =6 \sqrt{3}$