Perform Operations with Polynomials in Several Variables
- $$\left( 12 x ^ { 4 } y ^ { 2 } - 7 x ^ { 2 } y ^ { 2 } + 5 x y \right) + \left( 11 x ^ { 4 } y ^ { 2 } - 8 x ^ { 2 } y ^ { 2 } + 10 x y \right)$$

question 73

Multiple Choice

Perform Operations with Polynomials in Several Variables
- $$\left( 12 x ^ { 4 } y ^ { 2 } - 7 x ^ { 2 } y ^ { 2 } + 5 x y \right) + \left( 11 x ^ { 4 } y ^ { 2 } - 8 x ^ { 2 } y ^ { 2 } + 10 x y \right)$$

• A) \(23 x ^ { 4 } y ^ { 2 } - 15 x ^ { 2 } y ^ { 2 } + 15 x y\)
• B) \(- 15 x ^ { 4 } y ^ { 2 } + 23 x ^ { 2 } y ^ { 2 } + 15 x y\)
• C) \(23 x ^ { 4 } y ^ { 2 } + 15 x ^ { 2 } y ^ { 2 } + 15 x y\)
• D) \(15 x ^ { 4 } y ^ { 2 } - 23 x ^ { 2 } y ^ { 2 } + 15 x y\)

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Definitions:

Alternate Form

A variation of something that exists in a different version or form, often used to maintain interest or provide options.

Inter-rater

The level of agreement or consistency between different raters or observers assessing the same phenomenon.

Internal Consistency Reliability

A measure of how well the items on a test measure the same construct or concept.

Content Validity

The extent to which a test measures all facets of the concept it is intended to assess.