Answer:
−63m3−60n2
ru simplifying?
- 63m³ - 60n²
Step-by-step explanation:
Given
3n² - 9(7m³ + 7n²) ← distribute the parenthesis by 9
= 3n² - 63m³ - 63n² ← collect like terms
= - 63m³ - 60n²
