x2 + 11x – 26

     

This is a quadratic expression that can be factored as:

(x + 13)(x - 2)

To check, you can use the FOIL method:

(x + 13)(x - 2) = x^2 - 2x + 13x - 26 = x^2 + 11x - 26

So the factored form is (x + 13)(x - 2).