FOIL method?

[Sissy Devane]

Mulitply
(9 - ?6 )(3 + ?6 )
27 + 9?6 - 3?6 - ?(6^2 )
I tried to use the FOIL method now I am stuck

 

[Mrspi]

Mulitply
(9 - ?6 )(3 + ?6 )
27 + 9?6 - 3?6 - ?(6^2 )
I tried to use the FOIL method now I am stuck

You're actually quite close....sqrt(6[sup:26jqmw36]2[/sup:26jqmw36]) is just 6!

So you have

27 + 9 sqrt(6) - 3 sqrt(6) - 6

Combine like terms!

 

[Sissy Devane]

This is what I came out with
21 + 6?6
Is there another step? Can I combine 21 + 6?

 

[Sissy Devane]

Or am I finished with this step?
21 + 6?6

 

[Loren]

You need to learn what "like" terms are. You can only combine like terms.

 

[Deleted member 4993]

This is what I came out with

21 + 6?6 <<< You are finished - done - and you are correct.

Is there another step? Can I combine 21 + 6? <<< No! why? Please review the meaning of "like terms".