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Answer:
[tex](x+\frac{7}{2} )^{2} -\frac{69}{4}[/tex]
Step-by-step explanation:
[tex]x^{2} +7x-5=(x+\frac{7}{2} )^{2} -(\frac{7}{2})^{2} -5\\\\=(x+\frac{7}{2} )^{2} -((\frac{49}{4})+\frac{20}{4}) \\\\=(x+\frac{7}{2} )^{2} -\frac{69}{4}[/tex]
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