Question

Is it possible to factor `y=-x^2-2x+3`? If so, what are the factors?

Answer 1

y = -(x - 1)(x + 3)

Explanation:

`y = -x^2 - 2x + 3 = -(x^2 + 2x - 3)`
Since a + b + c = 0, use shortcut. One factor is (x - 1) and the other is:
`(x - c/a) = (x + 3)`
y = - (x - 1)(x + 3)