Completing the Square (General Quadratic Form)
Completing the Square (General Quadratic Form)
Secondary 2
- Write \(2{{x}^{2}}+10x-1\) in the form of \(a{{(x+h)}^{2}}-k\).
- Hence, solve \(2{{x}^{2}}+10x-1=0\).
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Answer:(i) \(2{{\left( x+2.5 \right)}^{2}}-13.5\) (ii) \(0.0981\) or \(-5.10\)
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