Answer:
4x² - 16x
Step-by-step explanation:
6x(x - 3) + x(2 - 5x) + 3x²
6x² - 18x + 2x - 5x² + 3x²
6x² - 5x² + 3x² - 18x + 2x
x² + 3x² - 16x
2(2x² - 9)
6x (x-3) + x (2-5 x) + 3 x² = 6x²- 18 + 2x-5x² + 3 x²
= 6x²-5x² + 3 x² + 2x - 18
=4x² - 18
=2(2x² - 9)
