Answer:
(x+3)(x-3)
Step-by-step explanation:
x^2 - 9
(x+3)(x-3)
This is a difference of two squares problem. Hope this helped :)
This is the awnser too this one
Answer:
6
Step-by-step explanation:
Plug in 3 into both expressions
Then add those results
2(3)+21=6+21=27
3-24 =-21
-------
6 is the sum of 27 and -21
Answer:x=
−4
7
Step-by-step explanation: