x2 - 16x + 28 = (x - 2)(x - 14).
Even though you don't mention any factors below, it is easy to tell that the above-given two factors must be the ones you are looking for. If (14 - x) and (2 - x) are mentioned in your list, they would be good, also.
(X + 2)(X + 4) Factored
x2-5x+4 = (x-1)(x-4) when factord
X2 + 2X - 35(X - 5)(X + 7)================take your pick of these two binomials
The factors of the expression, x2 + 3x - 4 are (x + 4) and (x - 1). As no binomials have been shown then the answer can be checked against the missing expressions to see if there is a match.
factor the trinomial 16x^2+24x+9
x - 4 APEX
(x + 12)(x + 7)
(x + 10)(x + 4)
(x-4)(x-1)
(x - 6)(x - 7)
(x - 4) or (x + 8)
(x + 11) and/or (x - 6)
(X + 2)(X + 4) Factored
x2+5x+6 = (x+2)(x+3)
X - 4
x2-5x+4 = (x-1)(x-4) when factord
You didn't bother to list the binomials to choose from, but the two binomial factors of x2 + 6x - 40 are (x + 10) and (x - 4)