Factor this trinomial.
-4x^2 - 8x + 5
first I have to take a -1 out so it is easier
-1(4 x^2 + 8 x - 5)
one way to get 8 is with 2 and 10
-1 (2 x + 5)(2 x - 1)
-4x^2 - 8x + 5
-1(4 x^2 + 8 x - 5)
one way to get 8 is with 2 and 10
-1 (2 x + 5)(2 x - 1)