Question

sqrt 10 multiplied by sqrt 8 = sqrt 80?

Answer 1

@hello1213 please help.

Answer 2

Let's write this out symbolically:\[\sqrt{10}*\sqrt{8}=\sqrt{8*10}?\]What do you think?

Answer 3

looks good to me

Answer 4

on the other hand, since \(80=16\times 5\) this is the same as
\[\sqrt{80}=\sqrt{16\times 5}=\sqrt{16}\sqrt{5}=4\sqrt5\]

Answer 5

ahh good that was my second choice. thanks!

Answer 6

yw