Toán Lớp 9: B1: Thực hiện phép tính
1) 2√10 x 3√8 x √2
2) √20 x (2√3 – √5)
3) (2√5 – √3) x (2√5 + 3)
4) (2√3 + √2) ²
5) 2√2 x (√3-2) + (1+ 2√2) ² – 2√6
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Toán Lớp 9: B1: Thực hiện phép tính
1) 2√10 x 3√8 x √2
2) √20 x (2√3 – √5)
3) (2√5 – √3) x (2√5 + 3)
4) (2√3 + √2) ²
5) 2√2 x (√3-2) + (1+ 2√2) ² – 2√6
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