9 - x^2
= 3^2 - x^2
= (3+x)(3-x)
Answer:

Step-by-step explanation:

hope this helps
brainliest appreciated
good luck! have a nice day!
Answer:
27 questions correct
Step-by-step explanation:
Well 108 marks and 4 marks for each correct,techinally you can’t subtract since 108 is the final score, and the thing was already subtracted so \divide.
108/4= 27
27 correct answers
Answer:
Set up camras get ur proof
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
If you take (2x+5) (2x+5) = 0
then 4x^2 + 20x +25 = 0