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Solve the Problem (7a+3c)(7a3c)( 7 a + 3 c ) ( 7 a - 3 c )

Question 99

Multiple Choice

Solve the problem.
- (7a+3c) (7a3c) ( 7 a + 3 c ) ( 7 a - 3 c )


A) 7a23c27 a ^ { 2 } - 3 c ^ { 2 }
B) 49a242ac9c249 a ^ { 2 } - 42 a c - 9 c ^ { 2 }
C) 49a2+42ac9c249 a ^ { 2 } + 42 a c - 9 c ^ { 2 }
D) 49a29c249 a ^ { 2 } - 9 c ^ { 2 }

Correct Answer:

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