SOLUTION: please help...thx Find the cubib function with the given zeros: 1,1+the square root of 11,1-the squre root of 11 ...can someone show me how to do it plz

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: please help...thx Find the cubib function with the given zeros: 1,1+the square root of 11,1-the squre root of 11 ...can someone show me how to do it plz      Log On


   

Question 524030: please help...thx
Find the cubib function with the given zeros: 1,1+the square root of 11,1-the squre root of 11 ...can someone show me how to do it plz
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
if "r" is a root (zero) of f(x), then x-r is a factor

f(x) = (x - 1)(x - 1 - sqrt(11))(x - 1 + sqrt(11))

multiply the factors to find the function (it is easier if you start by multiplying the sqrt factors first)