Mathematics
Junior High

答えは16です。
解説をお願いします!

式の値

Answers

x2+y2-2xyは乗法公式の(x-y)2が使えるので
{(√3+2)-(√3-2)}2=(√3+2-√3+2)2
=4の2乗
=16

です!

forestめい

ありがとうございました!

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