Answer/Step-by-step explanation:
A.

(distributive property)
(note: - × - = + and - × + = -)
B.
(distributive property)


Combine like terms
(note: -12/5 - 5/4 = -73/20)
C. (4x² - 7x + 5)(2x - 5)
4x²(2x - 5) - 7x(2x - 5) + 5(2x - 5) (distributive property)
8x³ - 20x² - 14x² + 35x + 10x - 25
Combine like terms
8x³ - 34x² + 45x - 25
D. (3m² - 5m + 2)²
= (3m² - 5m + 2)(3m² - 5m + 2)
= 3m²(3m² - 5m + 2) - 5m(3m² - 5m + 2) + 2(3m² - 5m + 2) (distributive property)
= 9m⁴ - 15m³ + 6m² - 15m³ + 25m² - 10m + 6m² - 10m + 4
Combine like terms
= 9m⁴ - 15m³ - 15m³ + 6m² + 25m² + 6m² - 10m - 10m + 4
= 9m⁴ - 30m³ + 37m² - 20m + 4