Question

what is radical sign 8 plus radical sign 72?

Answer 1

2 radical sign 2 + 2radical sign 6

Answer 2

\[\sqrt8+\sqrt{72}\]
\[8=2\times2\times2=2^3\]\[\sqrt{8}=\sqrt{2^3}=\sqrt{2^2\times 2}=2\sqrt2\]

\[72=2\times6\times6=2\times6^2\]

\[\dots\]\[\dots\]

Answer 3

so whats the awnser

Answer 4

\[\sqrt{72}=\sqrt{2\times6^2}=6\sqrt2\]

Answer 5

ok thanks!

Answer 6

can you add the two together by your self?

Answer 7

i dont think so...

Answer 8

\[2\sqrt2+6\sqrt{2}=(2+6)\sqrt2=\cdots\]

Answer 9

okay so \[\sqrt{72} + \sqrt{8}\] = ??

Answer 10

\[\sqrt{72}+\sqrt{8}=2\sqrt2+6\sqrt2=(6+2)\sqrt2=\dots\]

Answer 11

okay im in advanced 7th grade do you think my teacher will be like curious as tyo why i do the problem so well??

Answer 12

did you get the final answer?

Answer 13

well is the awnser what you said it's not like a one number awnser it's what you typed?

Answer 14

ok the final answer is
\[\cdots=8\sqrt2\]
I can explain any step you do not understand