0
Anonymous
78
Solon Thompson ∙
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It is: 78+a simplified
Wiki User
It is 78 + a.
78 + 79 + 80 + 80 + 81 + 81 = 479
kutta
81
9
a3 - 2a2 + 4a - 8 = a2(a - 2) + 4(a - 2) = (a - 2)(a2 + 4)