Question

what is the product of the radical expression
(7- sqrt7) (-6+sqrt7)
possible answers
-49-42 sqrt7
-49+13 sqrt7
-35-42 sqrt7
-6+ sqrt 7

Answer 1

Multiply these together using FOIL in the same way you would if you had (x+1)(x+2)

Answer 2

-49+13sqrt7

Answer 3

Good job.

Answer 4

thank you