Edward A. answered • 01/25/18
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Math Tutor, Retired Computer Scientist and Technical Communicator
Use this identity
(a^2 - b^2) = (a-b)(a+b)
T Y.
asked • 01/25/18If p2 - r2 = 18 and p - r = 2, what is the value of p + r?
If p2 - r2 = 18 and p - r = 2, what is the value of p + r?
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