Find the LCD of the Rational Expressions in the List $$\frac { a - 1 } { a ^ { 2 } + 2 a + 1 } , \frac { - 2 } { a ^ { 2 } + a }$$

question 79

Multiple Choice

Find the LCD of the rational expressions in the list.
- $$\frac { a - 1 } { a ^ { 2 } + 2 a + 1 } , \frac { - 2 } { a ^ { 2 } + a }$$

• A) \(( a + 1 ) ^ { 2 }\)
• B) \(a ( a + 1 ) ( a + 1 )\)
• C) \(a + 1\)
• D) \(a ( a + 1 ) ^ { 2 }\)

---

Definitions:

Marginal Cost

The production cost for one more unit of a product.

Marginal Cost Curve

A graphical representation showing how the cost of producing one additional unit of a good varies.

Average Total Cost

The per unit cost of production, computed by dividing the total cost of production by the total quantity of output.

Average Fixed Cost

The fixed costs of production (costs that do not change with the level of output) divided by the quantity of output produced.