Simplify the Polynomial by Combining Like Terms $$\left( 12 x ^ { 2 } y - 9 x y + 7 \right) + \left( - 11 x ^ { 2 } y + 5 x y - 8 \right)$$

question 300

Multiple Choice

Simplify the polynomial by combining like terms.
- $$\left( 12 x ^ { 2 } y - 9 x y + 7 \right) + \left( - 11 x ^ { 2 } y + 5 x y - 8 \right)$$

• A) \(23 x ^ { 2 } y + 14 x y + 15\)
• B) \(- x ^ { 2 } y - 14 x y + 15\)
• C) \(- 4 x ^ { 3 } y ^ { 2 } - 1\)
• D) \(x ^ { 2 } y - 4 x y - 1\)

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Definitions:

Quarterly Compounded

Refers to the process of calculating and adding interest to the principal amount of an investment or loan on a quarterly basis.

Nominal Rate

The stated or advertised interest rate on a loan or investment, not accounting for any compounding of interest within that period.

Quarterly Compounded

Quarterly compounded means that interest is calculated and added to the principal sum every quarter (three months), leading to growth in the investment or loan amount.

GIC

A financial product in Canada known as a Guaranteed Investment Certificate that promises a specific return rate for a predetermined time frame.