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Anonymous
13
Annamarie Trantow ∙
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7^2 - 6^2 = 49 - 36 = 13
Wiki User
-1
2 squared plus 2 x 3 = 10, 7 squared plus 7 x 2 = 63, 6 squared plus 6 x 5 = 66,8 squared plus 8 x 4 = 96 so 9 squared plus 9 x 7 = 81 + 63 = 144.
7(squared) or 7(sq)
-7 squared, which would be -49.
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