a - 1 by a into m + 1 into a square minus 1 by a square into x power 4 + 9 + 1 by x power 4

a - 1 by a into m + 1 into a square minus 1 by a square into x power 4

1.	a - 1 by a into m + 1 into a square minus 1 by a square into x power 4 + 9 + 1 by x power 4
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