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OpenStudy (atomicreaper):
The difference of a positive integer and its inverse is 15/4. Find the integer.
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OpenStudy (atomicreaper):
@welshfella
OpenStudy (welshfella):
the inverse of a positive integer I guess if its ' a' the inverse is '1/a' is that right?
OpenStudy (atomicreaper):
Im not sure, this is the problem.
OpenStudy (welshfella):
its benn a long time..
OpenStudy (welshfella):
yea i think thats right so we have the equation x - 1/x = 15/4 multiply through by 4x 4x^2 - 4 = 15x solve this for x.
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OpenStudy (atomicreaper):
4?
OpenStudy (welshfella):
yes - one of the solutions is an integer
OpenStudy (welshfella):
gtg
OpenStudy (atomicreaper):
Ok thanks so much for all the help!!
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