We want to expand (2x + y²)⁵.
From Pascal's Triangle (shown below), the coefficients of the expansion are
1,5,10,10,5,1.
n=0: 1
n=1: 1 1
n=2: 1 2 1
n=3: 1 3 3 1
n=4: 1 4 6 4 1
n=5: 1 5 10 10 5 1
Therefore the third term in the expansion is
10*(2x)³*(y²)² = 10*(8x³)*(y⁴) = 80x³y⁴
Alternatively, the third term is
₅C₃ (2x)³(y²)² = 10*(8x³)*(y⁴) = 80x³y⁴
Answer: 80x³y⁴
Answer:
D
Step-by-step explanation:
This is a backup question it would be great to state what question 3 was please
You can really just use a calculator...........
16.
Use the expression:
y₂ - y₁
--------
x₂ - x₁
choose one set to be your ₁, and the other to be your ₂. Plug them in
3 - 2 1
------- = ----------
5 - (-2) 7
your slope will be 1/7
hope this helps
