Question

multiply 3√5 by 2√5. Please this Question I am Not Getting it properly​

Answer 1

$3 \sqrt{5} \times 2 \sqrt{5} \\ we \: can \:also \: write \: it \: in \: this \: way \\ (3 \times 2)( \sqrt{5} \times \sqrt{5} ) \\ (6) \times (5) \\ 30 \\ \\ therefore \: \: 3 \sqrt{5} \times 2 \sqrt{5} = 30$