Question
Find roots of polynomial $$ p(x) = x^2-\frac{3}{2} $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= \dfrac{\sqrt{ 6 }}{ 2 }\\[1 em]x_2 &= - \dfrac{\sqrt{ 6 }}{ 2 } \end{aligned} $$Explanation
Step 1:
Get rid of fractions by multipling equation by $ \color{blue}{ 2 } $.
$$ \begin{aligned} x^2-\frac{3}{2} & = 0 ~~~ / \cdot \color{blue}{ 2 } \\[1 em] 2x^2-3 & = 0 \end{aligned} $$Step 2:
The solutions of $ 2x^2-3 = 0 $ are: $ x = - \dfrac{\sqrt{ 6 }}{ 2 } ~ \text{and} ~ x = \dfrac{\sqrt{ 6 }}{ 2 }$.
You can use step-by-step quadratic equation solver to see a detailed explanation on how to solve this quadratic equation.
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