Mathematics
Senior High
Solved
2段目→3段目がどのように整理されているのか教えてください🙇♂️🙇♂️
(5) 5t={(a + b)(a−bXa¹ + a²b² +6¹)}²
= {(a²_b²)(a¹ + a²b²+b4)}²
= {(a ²) ³ — (6²) ³)² = (a® — 6°) ²
12
6
12
= a ¹2-2ab + b ¹² (DE) S
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