What is the coefficient of $x^2$ when $-5x^3 - 5x^2 - 7x + 1$ is multiplied by $-x^2 - 6x + 1$ and the like terms are combined?
-5x2 * 1 = -5x2
-7x * -6x = 42x2
1 * -x2 = -x2
-5 + 42 - 1 = 36x2, which means 36 is your coefficient