Question

rationalize 8√10/√2

Answer 1

multiply ip and down with sqr2
8sqr20/2=4sqr20=8sqr5

Answer 2

wait what

Answer 3

up*\[8\sqrt{10}*\sqrt{2}/\sqrt{2}*\sqrt{2}=8\sqrt{20}/2=8\sqrt{5}\]

Answer 4

i just don't understand the last bit.

Answer 5

you get 4√20.. how does that = 8√5?

Answer 6

\[\frac{8\sqrt{10}}{\sqrt{2}}\]

\[=\frac{8\sqrt{10}}{\sqrt{2}}\times \frac{\sqrt{2}}{\sqrt{2}}\]
\[=\frac{8\sqrt{20}}{2}\]
\[=4\sqrt{20}\]
\[=8\sqrt{5}\]

Answer 7

√4*√5 = 2√5

Answer 8

yea *4 tht u get from 8/2 make it 8sqr5

Answer 9

last step because
\[\sqrt{20}=\sqrt{4\times 5}=\sqrt{4}\times \sqrt{5}=2\sqrt{5}\]

Answer 10

what the heck? lol

Answer 11

yes! 2√5 how is it 8√5

Answer 12

look carefully wht Satellite has written

Answer 13

I can follow everything but the random 8

Answer 14

oh I guess I get it.

Answer 15

Finally :):)

Answer 16

was ghetting the 4 outside and the 4 inside confiused

Answer 17

lol thanks guys.

Answer 18

yw :)