1. **State the problem:** Simplify and solve the expression $$2(x^2 + x - 4)^2 - 4 + \frac{1}{16}$$.
2. **Rewrite the expression:**
$$2(x^2 + x - 4)^2 - 4 + \frac{1}{16} = 2(x^2 + x - 4)^2 - \frac{64}{16} + \frac{1}{16}$$
3. **Combine constants:**
$$- \frac{64}{16} + \frac{1}{16} = -\frac{63}{16}$$
4. **Expression becomes:**
$$2(x^2 + x - 4)^2 - \frac{63}{16}$$
5. **Expand the square:**
$$(x^2 + x - 4)^2 = (x^2)^2 + 2 \cdot x^2 \cdot x + 2 \cdot x^2 \cdot (-4) + x^2 + 2 \cdot x \cdot (-4) + (-4)^2$$
More simply, use formula $$(a+b+c)^2 = a^2 + b^2 + c^2 + 2ab + 2ac + 2bc$$ with $a=x^2$, $b=x$, $c=-4$:
$$= x^4 + x^2 + 16 + 2x^3 - 8x^2 - 8x$$
6. **Simplify inside:**
$$x^4 + 2x^3 + (x^2 - 8x^2) - 8x + 16 = x^4 + 2x^3 - 7x^2 - 8x + 16$$
7. **Multiply by 2:**
$$2(x^4 + 2x^3 - 7x^2 - 8x + 16) = 2x^4 + 4x^3 - 14x^2 - 16x + 32$$
8. **Final expression:**
$$2x^4 + 4x^3 - 14x^2 - 16x + 32 - \frac{63}{16}$$
9. **Combine constants:**
$$32 = \frac{512}{16}$$
$$\frac{512}{16} - \frac{63}{16} = \frac{449}{16}$$
10. **Simplified expression:**
$$2x^4 + 4x^3 - 14x^2 - 16x + \frac{449}{16}$$
**Answer:** The simplified form of the expression is $$2x^4 + 4x^3 - 14x^2 - 16x + \frac{449}{16}$$.
Simplify Expression 675Cc4
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