1. **State the problem:** We need to find the value of $m$ such that $$x^3 - 8 + m = (x + 1)(x^2 - x + 1).$$
2. **Recall the formula:** The right side is a product of a binomial and a trinomial. We will expand it using distributive property:
$$ (x + 1)(x^2 - x + 1) = x(x^2 - x + 1) + 1(x^2 - x + 1). $$
3. **Expand the right side:**
$$ x^3 - x^2 + x + x^2 - x + 1 = x^3 + 1. $$
4. **Simplify the right side:** The terms $-x^2$ and $+x^2$ cancel out, and $+x$ and $-x$ cancel out, leaving:
$$ x^3 + 1. $$
5. **Set the expressions equal:**
$$ x^3 - 8 + m = x^3 + 1. $$
6. **Solve for $m$:** Subtract $x^3$ from both sides:
$$ -8 + m = 1. $$
Add 8 to both sides:
$$ m = 1 + 8 = 9. $$
**Final answer:** $m = 9$ which corresponds to option (c).
Find M Value
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