Toán Lớp 6: tìm x hoặc n) biết:
2mũx – 31 = 57
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Toán Lớp 6: tìm x hoặc n) biết:
2mũx – 31 = 57
Comments ( 2 )
2^x = 57 + 31
2^x = 88
2^x = 2^3 . 11
=> Vô lí
=> x in ∅