carlenstar281
help me math expression :/
Delete
Share
This Question is Closed
009infinity
Best Response
You've already chosen the best response.
0
???where??????
Snipa420
Best Response
You've already chosen the best response.
2
Everywhere
Snipa420
Best Response
You've already chosen the best response.
2
64-11
carlenstar281
Best Response
You've already chosen the best response.
0
wait what?
galacticwavesXX
Best Response
You've already chosen the best response.
1
\[(8 +√11 )(8 –√11 ) \rightarrow 8*8-8\sqrt{11}+8\sqrt{11}-\sqrt{11}*\sqrt{11}\]
which simplified you get \[64-11\] \[-\sqrt{11}*\sqrt{11}=-11\] the square root cancels out
carlenstar281
Best Response
You've already chosen the best response.
0
oh i get that
galacticwavesXX
Best Response
You've already chosen the best response.
1
yup just remember the FOIL concept and you will be good
carlenstar281
Best Response
You've already chosen the best response.
0
okay i will so the answer then would be 64 +/11
Snipa420
Best Response
You've already chosen the best response.
2
No it would be 64 - 11
Snipa420
Best Response
You've already chosen the best response.
2
or 53
carlenstar281
Best Response
You've already chosen the best response.
0
oh I see it got thankyou for your help :)
galacticwavesXX
Best Response
You've already chosen the best response.
1
good eye @Snipa420 i didnt see the 53 option the answer is 53
Snipa420
Best Response
You've already chosen the best response.
2
Go for it
galacticwavesXX
Best Response
You've already chosen the best response.
1
nope the answer would be A
galacticwavesXX
Best Response
You've already chosen the best response.
1
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.
galacticwavesXX
Best Response
You've already chosen the best response.
1
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 \[\sqrt{6}\]
galacticwavesXX
Best Response
You've already chosen the best response.
1
\[3\sqrt{16*6}=3\sqrt{16}*\sqrt{6}\rightarrow 3*4\sqrt{6}\rightarrow 12\sqrt{6}\]
galacticwavesXX
Best Response
You've already chosen the best response.
1
and all you have to do is add them together
You welcome anytime!!
carlenstar281
Best Response
You've already chosen the best response.
0
now i can do the rest with no problem thanks again
galacticwavesXX
Best Response
You've already chosen the best response.
1
yup