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Answer:

First Outer and Last Product

terms Inner terms terms

2. n^2 -7n,7n -49 n^2 - 49

3. y^2 6y,6y 36 y^2+12y+36

4. 25x^2 -15x,15x -9 25x^2 - 9

5. 12n^2 20n,-6 -10 12n^2 + 14n - 10