Completing the Square (Integer Form)
Completing the Square (Integer Form)
Secondary 3
- Express \({{x}^{2}}+4x-6\) in the form \({{\left( x+a \right)}^{2}}+b\) where \(a\) and \(b\) are integers
- Hence, solve the equation \({{x}^{2}}+4x-6=0\).
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Answer:(i) \({{\left( x-2 \right)}^{2}}-10\) (ii) \(5.16\) or \(-1.16\)
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