Solve the Inequality $$\left| x ^ { 4 } + 4 x ^ { 2 } + 4 \right| > 0$$

question 445

Multiple Choice

Solve the inequality. Write the solution set in interval notation.
- $$\left| x ^ { 4 } + 4 x ^ { 2 } + 4 \right| > 0$$

• A) \(( - 2,2 )\)
• B) \(\varnothing\)
• C) \(( - \infty , \infty )\)
• D) \(( - \infty , - 2 ) \cup ( 2 , \infty )\)

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Definitions:

Absorption Costing

A costing method that includes all manufacturing costs (both fixed and variable) in the cost of a product.

Net Income

The total earnings of a company after subtracting all expenses and taxes from total revenue.

Variable Costing

An accounting method that considers only variable costs in calculating the cost of goods sold and determines contribution margin.

Fixed Overhead

Costs that do not change with the level of production activity, such as rent, salaries, and insurance.