Question

Algebra 2 help? it looks familiar too

Answer 1

\[\sqrt{80}-3\sqrt{63}-\sqrt{125}-\sqrt{175}\]

Answer 2

lol, in this case you want to see if you can simplify the radicals

Answer 3

help with what, simplifying that and into what?

Answer 4

yeah i simplified \[\sqrt{80}\] to 9

Answer 5

the rest didnt simplify

Answer 6

reducing the number to prime factors is a good exercise

\[\sqrt{80}-3\sqrt{63}-\sqrt{125}-\sqrt{175}\]
\[\sqrt{2*40}-3\sqrt{9*7}-\sqrt{5*25}-\sqrt{25*7}\]
\[\sqrt{2*4*10}-3\sqrt{3*3*7}-\sqrt{5*5*5}-\sqrt{5*5*7}\]
\[\sqrt{2*2*2*2*5}-3\sqrt{3*3*7}-\sqrt{5*5*5}-\sqrt{5*5*7}\]

Answer 7

everything that is a doubled is a perfect square

\[\sqrt{2*2}\sqrt{2*2}\sqrt{5}-3\sqrt{3*3}\sqrt{7}-\sqrt{5*5}\sqrt{5}-\sqrt{5*5}\sqrt{7}\]
\[2*2\sqrt{5}-3*3\sqrt{7}-5\sqrt{5}-5\sqrt{7}\]
\[4\sqrt{5}-9\sqrt{7}-5\sqrt{5}-5\sqrt{7}\]
now we are back to 2 different radicals that cant be simplified any more

Answer 8

now is this to the same format of the last question?

Answer 9

yes

Answer 10

ok thanks...fyi all the question in the assignment are different so im going to be asking more questions

Answer 11

thats fine, the database has lots of room :)