Question

Exercitiul 2 va rogg!!Dau Coroana!​

Answer 1

trebuie sa scoti intregii de sub radical

a)

$( \sqrt{486} - \sqrt{48} \times \sqrt{18} ) \times ( \sqrt{24} + \sqrt{8} \times \sqrt{27} )$

$= (9 \sqrt{6} - 4 \sqrt{3} \times 3 \sqrt{2} ) \times ( 2 \sqrt{6} + 2 \sqrt{2} + 3 \sqrt{3} )$

$= ( 9 \sqrt{6} - 12 \sqrt{6} ) \times ( 2 \sqrt{6} + 6 \sqrt{6})$

$= ( - 3 \sqrt{6} ) \times 8 \sqrt{6}$

$= - 24 \times 6$

$= - 144$

la fel se aplica si la celelalte