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OpenStudy (anonymous):
find all real solutions sqrt 5x-1 = sqrt 4x+1
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OpenStudy (anonymous):
\(f(x) = \sqrt{x}\) is a one to one function. Therefore: \[f(a) = f(b) \implies a = b\] So just equate 5x-1 and 4x+1 and stipulate that for real solutions: \(5x \ge 1\) and \(4x \ge -1\)
OpenStudy (anonymous):
thx
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