Question 903504
The first term is "some negative number": x 
The second term is "2 less than twice that number": 2x-2 
The product is 220: x*(2x-2) = 220 
Divide it all by 2: 
x^2 - x = 110 
x^2 - x - 110 = 0 
The solutions are -10 and 11 (you could use the quadratic equation or just guess and check).