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adell [148]
3 years ago
13

What is the solution to x^2 + 6x +7

Mathematics
1 answer:
AnnyKZ [126]3 years ago
4 0

Answer:

D) \frac{-6\pm\sqrt{8} }{2}

Step-by-step explanation:

x^2+6x+7=0

x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

x=\frac{-6\pm\sqrt{6^2-4(1)(7)} }{2(1)}

x=\frac{-6\pm\sqrt{36-28} }{2}

x=\frac{-6\pm\sqrt{8} }{2} <-- correct option but not simplified fully

x=\frac{-6\pm2\sqrt{2}}{2}

x=-3\pm\sqrt{2}

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