Question

4 fourth root of 5 end root plus 7 cubed root of 5 end root minus 9 cubed root of 5 end root plus 6 fourth root of 5

Answer 1

can you rephrase the question, maybe using the equation tools :)

Answer 2

\[4^4\sqrt{5} + 7^3\sqrt{5} - 9^3\sqrt{5} + 6^4\sqrt{5}\] ???

Answer 3

\[4^{4}\sqrt{5}+ 7^{3}\sqrt{5} - 9^{3}\sqrt{5} + 6^{4}\sqrt{5}\]

Answer 4

factor out the root 5

Answer 5

wouldn't all the 5's turn into 1?

Answer 6

no

Answer 7

then?

Answer 8

think of root 5 as any other variable... X or Y or something
and factor it out of there, to get something like:
root 5 ( + - + )

Answer 9

think of 4x + 7x - 9x + 6x

Answer 10

so factor those out?

Answer 11

factor out the root 5, that will make it easier...
but all you need to do is type it all into a calculator
it is just a question of how many buttons you are willing to push

Answer 12

\[\sqrt{5}(4^4+7^3-9^3+6^4)\]

Answer 13

so the answer is \[1166\sqrt{5}\]?

Answer 14

is it 8 sqrt 5?

Answer 15

I don't think it is 8... these are some big numbers

Answer 16

looks like josh's calculator has good batteries, I like his answer

Answer 17

cool, i learnt something new :) thanks philips13

Answer 18

but that's not of my choices...

Answer 19

did we copy the problem correctly?