Question

Can you factor 3x^2-16x+21

Answer 1

x=3, 7/3

Answer 2

using the quadratic formula \[(16+(\sqrt{256-4(3)(21)}))/2(3) = 18/6\] and \[(16-(\sqrt{256-4(3)(21)}))/2(3) = 14/6 = 7/3\]