Completing the Square (General Form)
Completing the Square (General Form)
Secondary 3
- Express \({{x}^{2}}-13x-9\) in the form \({{(x+a)}^{2}}+b\).
- Hence solve the equation \(2{{x}^{2}}-26x-18=-98\).
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Answer:(i) \({{\left( x-6\frac{1}{2} \right)}^{2}}-51\frac{1}{4}\) (ii) \(8\) or \(5\)
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