Mathematics: What are the solutions of x2 - 2x + 10 = 0 ?

What are the solutions of x2 - 2x + 10 = 0 ?

Ответ:

Livi9666

01.12.2021

C. x=1+3i, x=1-3i

Step-by-step explanation:

$\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:1\cdot \:10}}{2\cdot \:1} \\=\frac{-\left(-2\right)\pm \:6i}{2\cdot \:1}\\x_1=\frac{-\left(-2\right)+6i}{2\cdot \:1},\:x_2=\frac{-\left(-2\right)-6i}{2\cdot \:1}\\\frac{-\left(-2\right)+6i}{2\cdot \:1}\\ =\frac{2+6i}{2\cdot \:1}\\=\frac{2+6i}{2}\\=\frac{2\left(1+3i\right)}{2}\\1+3i\\\\\\frac{-\left(-2\right)-6i}{2\cdot \:1}\\=\frac{2-6i}{2\cdot \:1}\\=\frac{2-6i}{2}\\=\frac{2\left(1-3i\right)}{2}\\1-3i\\x=1+3i,\:x=1-3i$

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Ответ:

aalejo7594

05.10.2022

Mathematics

Girl tell them stop playing with you you is not one of them your a bad mama jamma perio they could neva evea compare .

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What are the solutions of x2 - 2x + 10 = 0 ?

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