SOLUTION: 1.When asked to factor completely a certain polynomial, four students gave the following answers:3(x2-2x-15); (3x-5)(5x-15); 3(x-5)(x-3) and (3x-15)(x-3).Which one is the correct a

Algebra ->  Equations -> SOLUTION: 1.When asked to factor completely a certain polynomial, four students gave the following answers:3(x2-2x-15); (3x-5)(5x-15); 3(x-5)(x-3) and (3x-15)(x-3).Which one is the correct a      Log On


   



Question 359167: 1.When asked to factor completely a certain polynomial, four students gave the following answers:3(x2-2x-15); (3x-5)(5x-15); 3(x-5)(x-3) and (3x-15)(x-3).Which one is the correct answer and explain why?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi,
The only tht would represent a complete factoring would be:
3(x-5)(x-3)
As can be demonstrated: the others can be factured further
for ex
(3x-5)(5x-15) completly factored would be 5(3x-5)(x-3)