How many terms are in the expansion of the expression [(3x + 2y)^2 (3x - 2y)^2]^3 after it is simplified to lowest terms?
7 terms
2+2+3=7
Expand [(3x + 2y)^2 (3x - 2y)^2]^3
531441 x^12 - 1417176 x^10 y^2 + 1574640 x^8 y^4 - 933120 x^6 y^6 + 311040 x^4 y^8 - 55296 x^2 y^10 + 4096 y^12 {7 terms}
I think something about this has to do with Pascal's Triangle.
