1. ## Exponent Pyramid

My teacher gave us a pyramid pattern to solve the coefficients of large exponents and then a pattern for the rest of the letters and their exponents but I can't for the life of me understand/remember what he said. I am specifically stuck on (a+b)^4.

Pyramid:
............1
..........1...1
........1...2...1
......1...3...3...1
....1...4...6...4...1
1...5...10...10...5...1

2. Hello,
Originally Posted by A_Reed
My teacher gave us a pyramid pattern to solve the coefficients of large exponents and then a pattern for the rest of the letters and their exponents but I can't for the life of me understand/remember what he said. I am specifically stuck on (a+b)^4.

Pyramid:
............1
..........1...1
........1...2...1
......1...3...3...1
....1...4...6...4...1
1...5...10...10...5...1
Have a look at this : Pascal's triangle - Wikipedia, the free encyclopedia

3. So based on that do I have this correct?

a^4 + 4a^3*b + 6a^2*b^2 + 4a*b^3 +b^4

4. Originally Posted by A_Reed
So based on that do I have this correct?

a^4 + 4a^3*b + 6a^2*b^2 + 4a*b^3 +b^4
Exactly

5. Thank You.