Distribution of {x-3} {x-(2-SqRt5)} {x-(2+SqRt5)}

[Hockeyman]

{x-3} {x-(2-SqRt5)} {x-(2+SqRt5)}

I have to distribute these three factors out to make the polynomial function in the form y= ax^3 + bx^2 + cx + d

I'm having some trouble figuring out how to do it. Could someone get me started?

 

[stapel]

I would start by multiplying the two factors containing square roots, since the radicals will cancel out. Just multiply the two in the same way you multiply any other two polynomials.

Eliz.