SOLUTION: Use trial and error to factor the trinomial, or state that the trinomial is prime. 3x^2 + 11x - 20

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Use trial and error to factor the trinomial, or state that the trinomial is prime. 3x^2 + 11x - 20      Log On


   

Question 535939: Use trial and error to factor the trinomial, or state that the trinomial is prime.
3x^2 + 11x - 20
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
I'll try
+%283x+%2B+4+%29%2A%28+x+-+5+%29++=+3x%5E2+-+11x+-+20+
I need to change the sign of the x term
+%28+3x+-+4+%29%2A%28+x+%2B+5+%29+
This looks correct