What is the sum of the given polynomials in standard form? (x2 - 3x) + (-2x2 + 5x - 3)
-3x2 + 8x- 3
-x2 - 2x - 3
3x2 - 8x + 3
-x2 + 2x - 3

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters