Question

Factorise the following: x^2-2x-3

Answer 1

(x+1)(x-3)

Explanation:

We must factorize in the form of (x+-?)(x+-?):

x^2-2x-3

(x+1)(x-3)

Answer 2

(x-3) (x+1)

Explanation:

x^2-2x-3

Factor

What 2 numbers multiply to -3 and add to -2

-3*1 = -3

-3+1 = -2

(x-3) (x+1)