let f(x)=x^3+3x^2-2x+7 and g(x)=4x^3+17x^2+2x-9.
a. find f(x)+g(x)
b. for what constant c is the degree of f(x)+c*g(x) equal to 2?
c. find f(x)*g(x)
a. f(x) + g(x) = 5x^3 + 20x^2 + 2.
b. The constant c is -2.
c. f(x)*g(x) = 4x^6 + 29x^5 + 48x^4 - 8x^3 + 86x^2 + 30x - 63.
