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Multiply Assume That Variables Used as Exponents Represent Positive Integers (xa+7y2b)(xa7y2b)\left( x ^ { a } + 7 y ^ { 2 b } \right) \left( x ^ { a } - 7 y ^ { 2 b } \right)

Question 97

Multiple Choice

Multiply. Assume that variables used as exponents represent positive integers.
- (xa+7y2b) (xa7y2b) \left( x ^ { a } + 7 y ^ { 2 b } \right) \left( x ^ { a } - 7 y ^ { 2 b } \right)


A) x2a14xay2b49y4bx ^ { 2 a } - 14 x ^ { a } y ^ { 2 b } - 49 y 4 b
B) x2a+14xay2b49y4bx ^ { 2 a } + 14 x ^ { a } y ^ { 2 b } - 49 y 4 b
C) x2a14y4bx ^ { 2 } a - 14 y 4 b
D) x2a49y4bx ^ { 2 a } - 49 y 4 b

Correct Answer:

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