F(x) = 8 - 4x has one solution. f (x) = x2 - 9 has two solutions. f (x) = x3+ 3x2 + 5x + 15 has three solutions. make a conjecture: a polynomial of degree n appears to have solutions.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.

How do you do the foil method with polynomials?