Question

show that 1+radical 3is a zero of x^3-3x^2+2

Answer 1

guess you have no choice but to replace \(x\) by \(1+\sqrt{3}\) unless you want to factor this

Answer 2

sine 1 is clearly a zero (by inspection) you can factor out \(x-1\) and rewrite this as \((x-1) (x^2-2 x-2)\) and then use the quadratic formula

Answer 3

Thank You