The quotient of (x4 + 5x3 – 3x – 15) and a polynomial is (x3 – 3). What is the polynomial? x7 + 5x6 – 6x4 – 30x3 + 9x + 45

x – 5

x + 5

x7 + 5x6 + 6x4 + 30x3 + 9x + 45

Will give brainliest b. describe the function over each part of its domain. state whether it is constant, increasing, or decreasing, and state the slope over each part.