abbym1420 abbym1420 28-08-2019 Mathematics contestada Simplify the given expression. (–3x2 – 9x + 17) – (15x2 + 20x – 4) Question 1 options: –18x2 – 29x + 13 –18x2 – 29x + 21 –18x2 – 11x + 21 –18x2 – 24x + 13