Question

Can you check my answers? :)

Answer 1

\[\sqrt{72}\]

my answer is

\[6\sqrt{2}\]

Answer 2

That is correct. Good job!!

Answer 3

can you check some more? :)

Answer 4

\[\sqrt{49a^8}\]

my answer

\[a \sqrt{24.5}\]

Answer 5

What is
\[\sqrt{36}\]
and why is it what it is?

Answer 6

6, because 6*6=36

Answer 7

So what is
\[\sqrt{49}\]

Answer 8

7

Answer 9

Now refer to your previous problem

Answer 10

ahh, so 7a^8 is the answer ?

Answer 11

\[a^4(a^4)=a^8\]

Answer 12

\[\sqrt{49a^8}=7a^4\]

Answer 13

thats what i thought because you could simplify 8 so that would be 4, am i correct? :)

Answer 14

Not really.

Answer 15

ah im confused. but 7a^4 is the answer?

Answer 16

Yes that is the answer but the reason is:

Answer 17

\[a^m(a^n)=a ^{m+n}\]

Answer 18

So
\[a^8=a^4(a^4)\]
so
\[\sqrt{a^8}=a^4`since`(a^4)^2=a^8\]

Answer 19

oh now im kinda getting it :)

can you check 2 more?

Answer 20

yes

Answer 21

\[2 \sqrt{10} * 3 \sqrt{12} \]

My answer

\[6 \sqrt{120}\]

Answer 22

But now you have to simplify sqrt(120)

Answer 23

30

Answer 24

\[\sqrt{120}=\sqrt{4(30)}=2\sqrt{30}\]

Answer 25

is it either:

\[12 \sqrt{30}\]

or:


\[12 \sqrt{60}\]

Answer 26

So
\[6\sqrt{120}=6(2\sqrt{30})=12\sqrt{30}\]

Answer 27

Yay! :)

next,

\[\sqrt{14q} * 2 \sqrt{4q}\]

my answer

\[4 \sqrt{14q^2} \]