Mathematics
Junior High
Resolved

テストで出た問題の答えが合ってるか確認したいので
x=√7+√3
y=√7-√3
Xの二乗➖Yの二乗
の答えを教えてください

Answers

✨ Best Answer ✨

x²-y²
=(x+y)(x-y)
=(√7+√3+√7-√3)(√7+√3-√7+√3)
=2√7×2√3
=4√21

=4√21

さきち

ありがとうございます😊

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