Question

20x^2-11x-3

Answer 1

x=.75 and x=-.2

Answer 2

do you need to factor?

this is in general form a = 20 b = -11 and c =-3
what are the factors of a*c that add up to -11?
let's use -15 and +4
20 x^2 -15 x + 4 x -3
combine such that you can use the distributive property and then factor out the common term

let me know if you need more help