Toán Lớp 9: Rút gọn
a, 3 √( √20) – 2 √(2 √80) + 2 √(6 √45)
b, √[5- √(13+ √48)]
c, √(15+ √60+ √140+ √84)
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Toán Lớp 9: Rút gọn
a, 3 √( √20) – 2 √(2 √80) + 2 √(6 √45)
b, √[5- √(13+ √48)]
c, √(15+ √60+ √140+ √84)
Giúp mình với ạ
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