Question

Ex 4 punctul a)
Va rog este urgent!!!

Answer 1

$6 \sqrt{5 } \times ( - \frac{ \sqrt{5} }{30} ) =$
$- \frac{6( \sqrt{5) { }^{2} } }{30} = - \frac{6 \times 5}{30} = - \frac{30}{30} = - 1$