You can
put this solution on YOUR website!
how do you factor 3x^2-4x+7
Multiply 3 by 7, getting 21
Think of all the ways to factor 21 using integers:
21 x 1 = 21
7 x 3 = 21
Since the 7 is positive, list their sums
21 + 1 = 22
7 + 3 = 10
Since the middle coefficient in absolute value, 4 is
not listed then the trinomial doesn't factor. So the
trinomial is prime.
Edwin