Toán Lớp 9: (2-3 √5)(3 √5+2) giáp mik nha đang gấp lắm
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Toán Lớp 9: (2-3 √5)(3 √5+2) giáp mik nha đang gấp lắm
Comments ( 2 )
=2^2-(3\sqrt{5})^2
=4-9.5
=4-45=-41