Answer
y = x4 - 6x3 + 6x2 - 6x + 5
Explanation:
usually factor and set each factor = to 0 and solve for x...so we will unsolve it.
x=5 and x=1 If you meant quartic. Quartic is a function where the leading term has a forth power. So, you can multiply the quadratic function times any other quadratic function that only gives you complex answers...the easiest would be
y = x4 - 6x3 + 6x2 - 6x + 5