Answer: 15x⁴ - 29x³ + 6x² + 8x
Step-by-step explanation:
(3x² - 7x + 4)(5x² + 2x)
= (5x² + 2x)(3x² - 7x + 4)
= 5x²(3x² - 7x + 4) + 2x(3x² - 7x + 4)
= 15x⁴ - 35x³ + 20x²
+ 6x³ - 14x² + 8x
= 15x⁴ - 29x³ + 6x² + 8x
A p e x
