What are the factors of the polynomial below?

x2 + 7x - 18

A. (7x + 11) (x - 1)

B. (x + 2) (9x - 2)

C. (x + 9) (x - 2)

D. (7x + 9) (x - 2)

It is c because you can do a cross then put the 7 as the sum and - 18 as the product and then you see what can be multiplied to get you - 18 and at the same time get you 7 when you add both of them together. Which is - 2 and 9.