The expression 3x^2 + 10x + 8 can be written in the form (3x + A)(x + B) where A and B are integers. What is the value of A - B?
3x^2 + 10x + 8 = (3x+ 4 )(x+ 2 ) Take it from here......
To add on to @Guests's, the question is asking for what A-B is. so A-B=4-2=2