Factor by grouping

Intros
Lessons
  1. When can we factor by grouping?
    for example: x37x2+2x14{x^3} - 7{x^2} + 2x - 14
Examples
Lessons
  1. Factor: 15y3+25y2+3y+515{y^3} + 25{y^2} + 3{y} + 5