A known root of a quadratic

A known root of a quadratic

Secondary 2
TGM Original Questions

Given that \(x=3\) is one root of \(2x^2+px-15=0\), find

  1. \(p\),
  2. the other root.

Solution:

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Answer:(a) \(p=-1\); (b) \(x=-5/2\).

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