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Lilit [14]
3 years ago
14

Solve the following system of equations graphically on the set of axes below.

Mathematics
1 answer:
Kitty [74]3 years ago
8 0

Answer:

77

Step-by-step explanation:

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Which quadratic equation has the roots -1+4i and -1-4i
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Solve the quadratic in answer choice C using the quadratic formula:

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Here a=1, b=2, and c=17.

Substitute and you'll have:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-2+/-\sqrt{(-2)^2-4(1)(17)} }{2(1)}=\frac{-2+/-\sqrt{4-68}}{2)}

\frac{-2+/-\sqrt{-64} }{2}=\frac{-2+/-8i }{2}=-1+/- 4i


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