Answer :

we are given

[tex] (5x + 1)(5x - 1) [/tex]

we can distribute it

[tex] 5x*5x-1*5x+1*5x-1*1 [/tex]

[tex] 25x^2-5x+5x-1 [/tex]

now, we can simplify it

[tex] 25x^2-1 [/tex]...............Answer

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