## carlenstar281 Group Title help me math expression :/ one year ago one year ago

1. 009infinity Group Title

???where??????

2. Snipa420 Group Title

Everywhere

3. Snipa420 Group Title

64-11

4. carlenstar281 Group Title

wait what?

5. galacticwavesXX Group Title

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

6. carlenstar281 Group Title

oh i get that

7. galacticwavesXX Group Title

yup just remember the FOIL concept and you will be good

8. carlenstar281 Group Title

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

9. Snipa420 Group Title

No it would be 64 - 11

10. Snipa420 Group Title

or 53

11. carlenstar281 Group Title

oh I see it got thankyou for your help :)

12. galacticwavesXX Group Title

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

13. Snipa420 Group Title

Go for it

14. galacticwavesXX Group Title

nope the answer would be A

15. galacticwavesXX Group Title

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 Group Title

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 Group Title

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

18. galacticwavesXX Group Title

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

19. carlenstar281 Group Title

now i can do the rest with no problem thanks again

20. galacticwavesXX Group Title

yup