Complete the square for Quadratic Expression \({{x}^{2}}+px\)
Complete the square for Quadratic Expression \({{x}^{2}}+px\)
Secondary 3
Express each of the following expressions in the form \({{\left( x+a \right)}^{2}}+b\) .
- \({{x}^{2}}+6x\)
- \({{x}^{2}}-5x\)
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Answer:(i) \({{\left( x+3 \right)}^{2}}-9\) (ii) \({{\left( x-\frac{5}{2} \right)}^{2}}-\frac{25}{4}\)
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