Subject Change in a Quadratic Rational Formula
Subject Change in a Quadratic Rational Formula
Secondary 2
- Make \(x\) the subject of \(y=\frac{2{{x}^{2}}+6x}{2{{x}^{2}}-18}\).
- Hence, find the value of \(x\) when \(y=5\).
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Answer:(a) \(x=\frac{3y}{y-1}\), where \(y\ne1,\frac12\) (b) \(x=\frac{15}{4}=3\frac34\)
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