Multiply Using the Rule for Finding the Product of the Sum

question 44

Multiple Choice

Multiply using the rule for finding the product of the sum and difference of two terms.
- $$( 7 - 5 r ) ( 7 + 5 r )$$

• A) \(49 - 5 r ^ { 2 }\)
• B) \(49 - 25 r ^ { 2 }\)
• C) \(49 + 70 r - 25 r ^ { 2 }\)
• D) \(49 - 70 r - 25 r ^ { 2 }\)

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Definitions:

Sulfuric Acid

A highly corrosive strong mineral acid with the molecular formula H2SO4, widely used in industry for processes including fertilizer manufacturing, oil refining, and wastewater processing.

Major Organic Product

The main product formed in the highest yield in an organic chemical reaction, as opposed to minor products that are formed in smaller amounts.

Autooxidation

A process where substances undergo oxidation in the presence of oxygen at room temperature, typically leading to degradation or spoilage.

Explosive Materials

Substances that undergo rapid chemical reactions, producing an immediate release of pressure, gas, and heat.