Answer:
-108x³ + 115x² + 149x - 32
Explanation:
[(5x + 3)(8x + 6)] + [(-9x + 10) (12x² + 5x-5)]
= (5x + 3) (8x + 6) + (-9x + 10) ( 12x² + 5x - 5)
= 40x² + 54x + 18 - 108x³ + 75x² + 95x - 50
= -108x³ + 115x² + 149x - 32
So, the answer is -108x³ + 115x² + 149x - 32