Toán Lớp 9: tính và rút gọn
1. √12+2 √11 – √20-6 √11
2. √8+2 √15 – √7-2 √10
3. √8+2 √7 – √11-4 √7
4. √12+2 √11 – √20-6 √11
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Toán Lớp 9: tính và rút gọn
1. √12+2 √11 – √20-6 √11
2. √8+2 √15 – √7-2 √10
3. √8+2 √7 – √11-4 √7
4. √12+2 √11 – √20-6 √11
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