Question

r

Answer 1

\[3 \over (4+\sqrt5)+(3-2\sqrt5)\]

Answer 2

@ivettef365

Answer 3

rationalize the denominator

Answer 4

sorry I meant 7 - sqrt5

Answer 5

you have
3
------------------
4 + sqrt5 + 3 - 2sqrt5

Answer 6

that is
3
-----------------
7 - sqrt5

Answer 7

multiply top and bottom by 7 + sqrt5

Answer 8

what do you get

Answer 9

21 sqrt5 over 44

Answer 10

21 + 3sqrt5 over 44

Answer 11

can you help with this one? x^1/6 * x^2/7

Answer 12

when multiplying exponents you just have to add so you have
x^(1/6 + 2/7)

Answer 13

x3/13 ?

Answer 14

1 2 7 + 12 19
--- + ---- = ---------- = ------
6 7 42 42

Answer 15

simplify sqrt108 - 3 sqrt 50 +5 sqrt 12 +4 sqrt13

Answer 16

so it is x^19/42

Answer 17

ohh ok

Answer 18

sqrt108 = (36.3), so you can take out the 6 and you have
6sqrt3
-3sqrt50 = (25.2) so you have (-3)(5) sqrt2

Answer 19

5sqrt12 = (4.3), so you have (5)(2)sqrt3
so now you have
6 sqrt3 -15sqrt2 + 10sqrt3 + 4sqrt3

Answer 20

you can add all the sqrt3 and -15sqrt2 stays by itself

Answer 21

16 sqrt 3 - 3sqrt2

Answer 22

actually you have 6 + 10 + 4 sqrt3

Answer 23

20

Answer 24

20sqrt3 - 15sqrt2

Answer 25

not an option

Answer 26

are you sure you wrote down the problem correctly

Answer 27

is it the last 4 sqrt 3 or 4 sqrt 13 ??

Answer 28

+4 sqrt 18 not 13

Answer 29

If it is sqrt13 then the answer is
16sqrt3 - 15sqrt2 +4sqrt13

Answer 30

oh, then instead of 4sqrt3, the last one is 12sqrt2, combine the 2 and the 3

Answer 31

I have to go

Answer 32

the complete problem is

Answer 33

sqrt108 - 3 sqrt 50 +5 sqrt 12 +4 sqrt 18