(2x^3 + 2x^2 - 1)/ [(x^2 + x + 1)^2]. find the partial fraction decomposition. show steps to find solution

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9