1. **State the problem:** Find the values of $k$ such that the quadratic equation $$8x^2 + kx + 2 = 0$$ has no real roots.
2. **Recall the discriminant condition:** For a quadratic equation $ax^2 + bx + c = 0$, the discriminant is $$\Delta = b^2 - 4ac.$$ The roots are real if and only if $$\Delta \geq 0.$$ To have no real roots, we need $$\Delta < 0.$$
3. **Identify coefficients:** Here, $a = 8$, $b = k$, and $c = 2$.
4. **Write the discriminant inequality:**
$$
k^2 - 4 \times 8 \times 2 < 0
$$
5. **Simplify:**
$$
k^2 - 64 < 0
$$
6. **Rewrite inequality:**
$$
k^2 < 64
$$
7. **Solve for $k$:**
$$
-8 < k < 8
$$
**Final answer:** The quadratic equation has no real roots if and only if $$k$$ lies strictly between $$-8$$ and $$8$$.
No Real Roots 787043
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