Quadratic Roots
1. State the problem.
Solve the quadratic equation $2x^2 - 7x + 1 = 0$.
2. Identify coefficients.
Here $a = 2$, $b = -7$, $c = 1$.
3. Write the quadratic formula.
The solutions are given by $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
4. Compute the discriminant.
Calculate $b^2 - 4ac = (-7)^2 - 4\cdot 2 \cdot 1 = 49 - 8 = 41$.
5. Substitute and simplify.
Compute $-b = -(-7) = 7$ and $2a = 4$.
Thus $$x = \frac{7 \pm \sqrt{41}}{4}$$
6. Final answer.
The roots are $x = \frac{7 + \sqrt{41}}{4}$ and $x = \frac{7 - \sqrt{41}}{4}$.