A because I did the math and got that as the answer :)
You would need to see the rest of the equation to plug in 7 for x. Treat it as y=equation and replace any x with 7.
Answer:
55- 3m is the awnser for this question
Answer:
The first answer should be the 3rd one.
The second answer should be the first one.
Step-by-step explanation:
Answer:
-3<x<3
Step-by-step explanation:
let y=0
0=x^2-9
0=(x+3)(x-3)
x=-3 and x=+3
