## anonymous 3 years ago help me math expression :/

1. anonymous

???where??????

2. anonymous

Everywhere

3. anonymous

64-11

4. anonymous

wait what?

5. anonymous

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

6. anonymous

oh i get that

7. anonymous

yup just remember the FOIL concept and you will be good

8. anonymous

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

9. anonymous

No it would be 64 - 11

10. anonymous

or 53

11. anonymous

oh I see it got thankyou for your help :)

12. anonymous

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

13. anonymous

Go for it

14. anonymous

nope the answer would be A

15. anonymous

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. anonymous

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. anonymous

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

18. anonymous

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

19. anonymous

now i can do the rest with no problem thanks again

20. anonymous

yup