## carlenstar281 2 years ago help me math expression :/

1. 009infinity

???where??????

2. Snipa420

Everywhere

3. Snipa420

64-11

4. carlenstar281

wait what?

5. galacticwavesXX

$(8 +√11 )(8 –√11 ) \rightarrow 8*8-8\sqrt{11}+8\sqrt{11}-\sqrt{11}*\sqrt{11}$ which simplified you get $64-11$ $-\sqrt{11}*\sqrt{11}=-11$ the square root cancels out

6. carlenstar281

oh i get that

7. galacticwavesXX

yup just remember the FOIL concept and you will be good

8. carlenstar281

okay i will so the answer then would be 64 +/11

9. Snipa420

No it would be 64 - 11

10. Snipa420

or 53

11. carlenstar281

oh I see it got thankyou for your help :)

12. galacticwavesXX

good eye @Snipa420 i didnt see the 53 option the answer is 53

13. Snipa420

Go for it

14. galacticwavesXX

nope the answer would be A

15. galacticwavesXX

first thing you must look at is the square root. you can see that they aren't the same when adding radicals together they must have the same radical.

16. galacticwavesXX

we can see the 1st one is $2\sqrt{6}$ and the 2nd one is $3\sqrt{96}$ you now have to find 2 multiples that would equal 96 so you can remain with a $\sqrt{6}$

17. galacticwavesXX

$3\sqrt{16*6}=3\sqrt{16}*\sqrt{6}\rightarrow 3*4\sqrt{6}\rightarrow 12\sqrt{6}$

18. galacticwavesXX

and all you have to do is add them together You welcome anytime!!

19. carlenstar281

now i can do the rest with no problem thanks again

20. galacticwavesXX

yup