Question

Okay 4 sqrt 10 times 2 sqrt 90 is??

Answer 1

4sqrt(10)*2sqrt(90)=4sqrt(10)*2sqrt(9*10)=4sqrt(10)*6sqrt(10)=sqrt(10)[4+6]=10sqrt(10)

Answer 2

\[4\sqrt{10}\times2\sqrt{90}=4\sqrt{10}\times2\sqrt{9\times10}=4\sqrt{10}\times6\sqrt{10}\]

Answer 3

Now you can multiply getting \[24\sqrt{10}\]

Answer 4

Thanks!