Help a girl out?

17 - 12m = -11(m-2)

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?