The product of 7d^2 - 3d + g and 3d^2 + hd - 8 is 12d^4 + 43d^3 - 46d^2 + 72d - 64. What is g + h?
woah, that's a long number.
multiply them together then compare your answer with the real answer and see what h and g are supposed to be.
For example, I can't tell that g = 8.
Since -8g = -64.