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Question
Which of the following is a factor of (49x2−1)+(1+7x)2
Which of the following is a factor of (49x2−1)+(1+7x)2
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Solution
The correct option is B 1+7x
49x2−1 = (7x+1)(7x-1)
Here, P(x) = (7x+1)(7x−1)+(1+7x)2
= (7x+1) ((7x-1)+ (1+7x))
It is clear from above that (1+7x) is a factor of the given polynomial expression.
1+7x
49x2−1 = (7x+1)(7x-1)
Here, P(x) = (7x+1)(7x−1)+(1+7x)2
= (7x+1) ((7x-1)+ (1+7x))
It is clear from above that (1+7x) is a factor of the given polynomial expression.
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