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OpenStudy (anonymous):
How to solve it? √(2k+1) -26=-5 thx.
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OpenStudy (anonymous):
220
OpenStudy (agreene):
add 26 to both sides, then square both sides. solve from there.
OpenStudy (chriss):
sqrt(2k+1)-26 = -5 +26 +26 sqrt(2k+1) = 21 2k+1=441 2k=440 k=220
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