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Find the value of discriminant  {x }^{2}+ 7x - 1 = 0

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326 cents Joann Long
Answer:

 {x}^{2}+ 7x - 1 = 0 \\\\ here \: a \:= 1 \\\\ b \:= 7 \\\\ c =- 1 \\\\ we \: know \:\\\\ discriminant ={b}^{2}- 4ac \\\\={(7)}^{2}- 4 \times 1 \times ( - 1) \\\\= 9 - 4 \times ( - 1) \\\\= 9 - ( - 4) \\\\= 9 + 4 \\\\= 13

hope this much helps uh ❣️

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Joann Long
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