Subtract the Polynomials and Simplify $$\left( - 3 r ^ { 2 } - 2 r - 4 \right) - \left( - 9 r ^ { 2 } + 7 r + 2 \right)$$

question 110

Multiple Choice

Subtract the polynomials and simplify. $$\left( - 3 r ^ { 2 } - 2 r - 4 \right) - \left( - 9 r ^ { 2 } + 7 r + 2 \right)$$

• A) \(- 12 r ^ { 2 } + 5 r - 2\)
• B) \(6 r ^ { 2 } - 9 r - 6\)
• C) \(6 r ^ { 2 } - 2 r ^ { 2 } - 7 r - 6\)
• D) \(6 r ^ { 2 } + 5 r - 2\)

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Definitions:

Social Interaction

The process by which individuals act and react in relation to others, thereby creating socially reciprocal relationships and structures.

Cooperation

A basis for social interaction in which power is more or less equally distributed between people of different status. The dominant emotion in cooperative interaction is trust. Cooperation may also be defined more generally as the human capacity to create a complex social life.

Rational Choice

A theory in economics and sociology that stipulates individuals always make prudent and logical decisions that provide them with the greatest benefit or satisfaction.

Life Expectancy

The average age at death of the members of a population.