Question

6√10•(-2√5)=
6√10:(-2√5)=
-2√5 la puterea a 3=
Va rog frumos ajutați-mă!!

Answer 1

$6 \sqrt{10} \times ( - 2 \sqrt{5} ) = - 12 \sqrt{50} = - 60 \sqrt{2}$
$6 \sqrt{10} \div ( - 2 \sqrt{5} ) = - 3 \sqrt{2}$
${ - 2 \sqrt{5} }^{3} = { - 2 \sqrt{5} }^{2} \times ( - 2 \sqrt{5} ) = 20 \times ( - 2 \sqrt{5} ) = - 40 \sqrt{5}$