Yohan C. answered • 09/21/14
Tutor
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Math Tutor (up to Calculus) (not Statistics and Finite)
Hi Britt,
This is not factorable since factor of 2 for 2 is 2 & 1. And 2 & 1 adds up to 3. If "not factorable" is one of the solution, this is one of those circumstances. Or, this is not factorable because it is prime. Remember, primes have only 2 factors: 1 and itself.
So, my take on this is "Not Factorable" or prime.
If last term ( value of C) is 20, then it is factorable. If it is 20, then factors are 1&20, 2&10, 4&5. Since the value of the C is positive, both factors must be alike either all + or all -. Since middle term (B) is +, both factors will be +.
4&5 does give you 9 when they add and give 20 when you multiply. So, it will look like this if the last term is 20:
(x+5)(x+4) if the last term is 20.
But if last term (C value) is 2, it is not factorable or it is prime. Good luck.
