Mathematics
Senior High
Solved
【至急】
ここの式変形が全く分からないので詳しく教えて頂きたいです🙇♀️
|a + B₁² = (a + b)(a + B)
= (a + b)(a + B)
= aa+aß+aß + BB
= lal² + aß+aß + |B|²
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遅くなりました💦
ありがとうございます！