Question

Which of the binomial below is a factor of this trinomial 4x^3-20x^2+24x

a) x+3
b)x-3
c)2x-3
d)2x+3

Answer 1

b) x - 3

see attached for proof

Answer 2

`4x^3-20x^2+24x`


`4x (x^2-5x+6)`


`4x(x-2)(x-3)`


`(b)x-3`