Mathematics
Senior High
高校数学指数対数です
下の写真の赤矢印のところなんですが、どのように計算すればこのようにAの式に置き換えることができるんでしょうか？？
(9) (aš + α-5) (9 ³ ³ - 1 + α- ³½³)
↓
(A+)(N+1)と考えると
(a+b) (a²-ab+b²) = a³- 63 ay A³+ Á
3
(a³) ³ + (α-5)³
=
a+
"
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