How do you Factor the equation 2n2-n-5?

Answer:
Quadratic formula: (1 +/- sqrt(1 + 40))/4.

Sqrt 41 is not an integer, call it 6.4, so roots are 7.4/4 and -5.4/4 ie 1.85 and -1.35

so your "factors" are (2x - 2.7)(x + 1.85)
First answer by Superscot85. Last edit by Superscot85. Contributor trust: 47 [recommend contributor recommended]. Question popularity: 19 [recommend question].