Factor Completely Using the Grouping Method to Factor Trinomials $$9 x ^ { 2 } - 39 x - 30$$

question 86

Multiple Choice

Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.
- $$9 x ^ { 2 } - 39 x - 30$$

• A) prime
• B) \(3 ( 3 x + 2 ) ( x - 5 )\)
• C) \(( 9 x + 6 ) ( x - 5 )\)
• D) \(3 ( 3 x - 2 ) ( x + 5 )\)

Understand the factors that cause shifts in demand curves for goods and services.

Identify the characteristics and outcomes of goods being substitutes or complements.

Differentiate between a change in demand and a change in quantity demanded.

Recognize how consumer income changes impact the demand for normal and inferior goods.

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Definitions:

Pegmatite

An igneous rock containing very large crystals, which may be centimeters to meters long.

Igneous Pegmatite

A coarse-grained igneous rock composed primarily of large crystals, often containing rare minerals.

Magma

The molten or semi-molten natural material from which all igneous rocks are derived, located beneath the Earth's surface.

Welded Texture

A texture found in volcanic rocks, formed when hot volcanic ash and debris fuse together under pressure.