4x+5
16x2 + 40x + 25
= (4x + 5) (4x + 5)
(x+8)(x-5)
(x + 2)(x - 8)
(x+6)(X+20)
(4x + 5)(x - 3)
-70
(x - 6)(x - 9)
(x - 4)(x - 11)
It's not enough to copy the question off the test. If you don't tell us what the trinomial is, we can't factor it for you.
(2x + 5)(6x - 5)
(x+13)(x+4)
(x + 5)(x + 8)
4x2-7x-15 (4x+5)(x-3)