The answer is none because the square cannot be rotated into a cone or a cylinder. The square would need some sort of a circle to be made into those.
Given that the last term is -3x^4, the polynomila is ordered in descending order of the exponent of x. Then, the first term is that where y is with the highest exponent, that is y^4
Simplify the terms with y^4: -2y^4 + 6y^4 = 4y^4
Then the first term is 4y^4
You subtract 15.50 from 47.50
then you will get your answer it is 31
FOIL
x^2+11x-9x-99
x^2+2x-99
