That's not a trinomial, but it factors to x(x + 19)
x2 + 3x - 4 = (x + 4)(x - 1)
-((x + 2)(x - 9))
(x + 9)(x - 1)
That factors to (x - 14)(x - 2)
A trinomial.
The factors of x2 + 5x + 4 would be (x + 1) and (x + 4)
x2+14x+49 = (x+7)(x+7) when factored
Yes!
x + 4
x2-18x+81 = (x-9)(x-9) when factored
vbh