1. The problem is to solve an addmath question, but since no specific question was provided, I will demonstrate solving a common addmath problem: solving a quadratic equation.
2. The general form of a quadratic equation is $$ax^2 + bx + c = 0$$.
3. The formula to find the roots of the quadratic equation is the quadratic formula:
$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
4. Important rules:
- The discriminant $$\Delta = b^2 - 4ac$$ determines the nature of the roots.
- If $$\Delta > 0$$, there are two distinct real roots.
- If $$\Delta = 0$$, there is one real root (a repeated root).
- If $$\Delta < 0$$, the roots are complex.
5. Example: Solve $$2x^2 - 4x - 6 = 0$$.
6. Identify coefficients: $$a=2$$, $$b=-4$$, $$c=-6$$.
7. Calculate discriminant:
$$\Delta = (-4)^2 - 4 \times 2 \times (-6) = 16 + 48 = 64$$
8. Since $$\Delta = 64 > 0$$, there are two distinct real roots.
9. Apply quadratic formula:
$$x = \frac{-(-4) \pm \sqrt{64}}{2 \times 2} = \frac{4 \pm 8}{4}$$
10. Calculate roots:
- $$x_1 = \frac{4 + 8}{4} = \frac{12}{4} = 3$$
- $$x_2 = \frac{4 - 8}{4} = \frac{-4}{4} = -1$$
11. Final answer: The roots of the equation $$2x^2 - 4x - 6 = 0$$ are $$x=3$$ and $$x=-1$$.
Quadratic Roots 89C9Ed
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