Can i get some and a walk through on this

Josephine has a great garden with and area of 2x2 + x - 6 square feet

What is the standard form of -5x^2+2x^4-11+x^3+3x

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?