Question

Factor the following trinomial.
x^2 - 2x − 80

Answer 1

to factor these just find 2 numbers that multiply to -80 and add up to -2

Answer 2

So: List possible pairs of factors of -80: for example, -80 and 1, -40 and 2, and so on. Keep going. If you're lucky, you'll find 2 such factors that also add up to -2.

Answer 3

(x-10)(x+8)