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One of the factors of (25 x^(2)-1) ...

One of the factors of `(25 x^(2)-1) +(1+5x)^(2)` is

A

`5+x`

B

`5-x`

C

`5x-1`

D

`10x`

Text Solution

Verified by Experts

The correct Answer is:
D

Now ,`(25x^(2)-1)=(1+5x)^(2)`
`=25x^(2)-1+1+25x^(2)+10x " " ["using identity , " (a+b)^(2)=a^(2)+b^(2)+2ab]`
`=50 x^(2)+10x=10x(5x+1)`
Hence ,one of the factor of given polynomial is 10x .
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