Mathematics
Junior High
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中3√
0になる解法を教えて頂きたいです

☆(5) V63-5/7+/28 を計算しなさい。
中3 ルート 数学

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✨ Best Answer ✨

‪√‬63 =3‪√‬7 √28=2√7 だから

3‪√‬7-5√7+2√7 =0

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Answers

与式
=√(7×3×3)-5×√7+√(2×2×7)
=3√7-5√7+2√7
=0

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