Toán Lớp 9: rút gọn biểu thức (4√2 + 2√5)√5 – √160
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Toán Lớp 9: rút gọn biểu thức (4√2 + 2√5)√5 – √160
Comments ( 2 )
= 4\sqrt{10} + 2.5 – 4\sqrt{10}
= 10