Question

-3√20 mulitipled by √15

Answer 1

\( -3 \sqrt(20) *\sqrt(15)\)
Ok now the rule goes as follows:
\( \sqrt{a}*\sqrt{b}=\sqrt{a*b}\)
and \(c\sqrt{a}*\sqrt{b}=c\sqrt{a*b}\)

Answer 2

Can you apply these rules to your problem?

Answer 3

ok ill try and can u tell me if i have found the right answer?

Answer 4

Yes definitely :)

Answer 5

is it -3√300 ?

Answer 6

Yessssss :)

Answer 7

now what am i supposed to do after that to solve?

Answer 8

find the multiples of 300 ?

Answer 9

Okkk now we have to break it down
For example:
\(\sqrt{28}=\sqrt{7*4}=\sqrt{7*2*2}=2\sqrt{7}\)
Yaaaaaaaaaa

Answer 10

so gcf and then u square u
it?

Answer 11

Ummm lets first find factors of 300
The way I would begin is 30*10=300
We know that 30=5*6 and 10=5*2
so 300=5*6*5*2

Answer 12

Do you follow what I did?

Answer 13

hmmmmm 6 can be broken down to 6=3*2

Answer 14

Its kind of like we are making a factor tree. Are you familiar with that?

Answer 15

So basically 300=3*2*5*5*2

Answer 16

hmmmmm