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Equations reducible to quadratics
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Equations reducible to quadratics
Secondary 2
TGM Original Questions
Solve \(x^2-3x-10=0\).
Hence solve
\((p^2-4p)^2-3(p^2-4p)-10=0\), and
\(9y^4-9y^2-10=0\), giving real solutions only.
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Answer:
(a) \(x=5,-2\); (b)(i) \(p=5,-1,2\pm\sqrt2\); (ii) \(y=\pm\sqrt{\frac53}\).
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