contestada

What is the product of 2x+3 and 4x² - 5x+6?
1) 8x? - 2x2 + 3x + 18
3) 8x + 2x - 3x + 18
2) 8x? - 2x - 3x + 18
4) 8x2 + 2x + 3x + 18