Answer:
The set of solution is {-9,-4}
Step-by-step explanation:
* We use this result: A.B=0 , that means A=0 or B=0.
* (x+9)(x+4)=0, then x+9=0 or x= - 9
Or x+4=0, x= - 4.
This equation has 2 solutions: - 9 and - 4.
Hope that useful for you.
C
If you plug in 4 to the equation it looks like this:
48-5= 20+23. Subtract 5 and add 23, to get 43=43. That statement is true so it's 4.
I think No B
if wrong correct me pls
have a great day
it is 10,000
