1. **State the problem:** Solve the quadratic equation using the Bhaskara formula (quadratic formula).
2. **Formula:** For a quadratic equation $ax^2 + bx + c = 0$, the solutions are given by:
$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
3. **Important rules:**
- The term under the square root, $\Delta = b^2 - 4ac$, is called the discriminant.
- If $\Delta > 0$, there are two distinct real roots.
- If $\Delta = 0$, there is one real root (a repeated root).
- If $\Delta < 0$, there are no real roots (complex roots).
4. **Example:** Suppose the quadratic equation is $2x^2 - 4x - 6 = 0$.
5. Calculate the discriminant:
$$\Delta = (-4)^2 - 4 \times 2 \times (-6) = 16 + 48 = 64$$
6. Since $\Delta = 64 > 0$, there are two real roots.
7. Apply the formula:
$$x = \frac{-(-4) \pm \sqrt{64}}{2 \times 2} = \frac{4 \pm 8}{4}$$
8. Calculate each root:
$$x_1 = \frac{4 + 8}{4} = \frac{12}{4} = 3$$
$$x_2 = \frac{4 - 8}{4} = \frac{-4}{4} = -1$$
9. **Final answer:** The solutions are $x = 3$ and $x = -1$.
Bhaskara Solution 6390A2
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