4x^2 - 13x + 3

How do you break this into groups?
So far I'm having trouble with this type of concept.
Please explain it, thanks!

1 answer

4x^2 - 12x - 1x + 3
... 4 is to 12 as 1 is to 3

4x (x - 3) - 1 (x - 3)

(4x - 1) (x - 3)

try googling this
... "factoring polynomials british method"