6a-(n-1)(3a) is the nth term
Expanding we get 6a-3an+3a=9a-3an=3a(3-n)
SOLUTION: nth term is 3a(3-n)
Answer:
12.6cm
Step-by-step explanation:
Answer:
- 4x² + 6xy - y²
Step-by-step explanation:
8x² + 3xy + 4y² - 12x² + 3xy - 5y² ← collect like terms
= (8x² - 12x² ) + (3xy + 3xy) + (4y² - 5y²)
= - 4x² + 6xy - y²
Answer:2 20%
Step-by-step explanation: you can use it twice
Answer:
You can get the sale price one way or another way: 0.9 times p and p - 0.1 p.
