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Question

36a2b5c3 - 49a2bc = ______



Your Answer
A

bc (6b2c - 7) (6b2c + 7)

Your Answer
B

abc (6b2c - 7) (6b2c + 7)

Correct Answer
C

a2bc (6b2c - 7) (6b2c + 7)

Your Answer
D

a2b (6b2c - 7) (6b2c + 7)


Solution

The correct option is C

a2bc (6b2c - 7) (6b2c + 7)


36a2b5c3 - 49a2bc

= a2bc [36b4c2 - 49]

= a2bc [(6b2c)2 - (7)2]

= a2bc (6b2c - 7) (6b2c + 7)

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