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How many terms are in the expansion of the expression [(3x + 2y)^2 (3x - 2y)^2]^3 after it is simplified to lowest terms?

 Nov 17, 2019
 #1
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7 terms 

2+2+3=7 

 Nov 17, 2019
 #2
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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}
 

 Nov 17, 2019
 #3
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I think something about this has to do with Pascal's Triangle.

 Nov 18, 2019

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