Is x-12 a factor of f(x)=x^4-12x^3+x^2-12x?

Which ratio is equivalent to 10: 85

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

A50% increase followed by 33 1/2% decrease