Search 75,599 tutors
FIND TUTORS
Ask a question
0 0

find fx in the expression

Tutors, please sign in to answer this question.

1 Answer

Lets start by looking at a simpler example using numbers:
 
 
 
232
 
23 = 8
24 = 16
8 * 16 = 128
 
We could also write it out instead of using exponents:
 2 * 2 * 2  * 2  * 2  * 2  * 2 = 27 =128
 
so we could say 2(3+4)= 2(7) =  128
 
The point is, we can just add the exponents since they have the same base (2)
 
(10x-1) + (10-3x) = 7x-9
 
so f(x) = 7x-9
 
2(7x-9)