Question

How would I do this problem? (13 + radical 5) + (2 + 3 radical 5)

Answer 1

\[(13+\sqrt{5}) + (2+3\sqrt{5})\]

Answer 2

imagine \[\sqrt{5}=x\]
then add like terms

Answer 3

13+x+2+3x

Answer 4

so i would add x and 3x to get 4x which is actually \[4\sqrt{5}\]

Answer 5

and then add 13 and 2? so my final answer would be\[14+4\sqrt{5}\] ?

Answer 6

its \[15+4\sqrt{5}\]

Answer 7

that's what i meant haha! typo! :-)

Answer 8

we have touse calculator or else approaximate it

Answer 9

yeah i meant 15 instead of 14, thank you!