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bogdanovich [222]
3 years ago
15

Which are the solutions of x2 = 19x 1

Mathematics
2 answers:
o-na [289]3 years ago
8 0
Here you go.

I was sorta unsure how to read the last part in your question but I tried my best to interpret it 

irga5000 [103]3 years ago
7 0

For this case we have the following quadratic equation:

x ^ 2 = 19x + 1

Rewriting we have:

x ^ 2 - 19x - 1 = 0

Then, using the quadratic formula we have:

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

Substituting values:

x =\frac{-(-19)+/-\sqrt{(-19)^2-4(1)(-1)}}{2(1)}

Rewriting:

x =\frac{19+/-\sqrt{361+4}}{2}

x =\frac{19+/-\sqrt{365}}{2}

Therefore, the solutions are given by:

x =\frac{19+\sqrt{365}}{2}

x =\frac{19-\sqrt{365}}{2}

Answer:

The solutions of the equation are:

x =\frac{19+\sqrt{365}}{2}

x =\frac{19-\sqrt{365}}{2}

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