esthervillalobos0101 esthervillalobos0101 28-05-2023 Mathematics contestada Simplify: 2 3x + 9x + 30x -3x³-18x²- 24x ( ; x = -4,-2, 0A -1/2×^2-5/4×b ×^3-1/2×^2-5/4×C ×+5/×-4D ×-5/×+4