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| Try a shortcut (Posted on 2018-01-21) |
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List all real numbers x fulfilling:
16x + 1 = 2x + 8x
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Submitted by Ady TZIDON
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Rating: 3.0000 (1 votes)
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Solution:
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(Hide)
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let 2^x=z
(z-1)*(z^3-1)=1
z-1=0
z=1
x=0 |
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