Respuesta :

25x²-1

..............


Answer:  The required product is [tex]25x^2-1.[/tex]

Step-by-step explanation:  We are given to find the following product :

[tex]P=(5x+1)(5x-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

We will be using the following formula :

[tex](a+b)(a-b)=a^2-b^2.[/tex]

From (i), we get

[tex]P\\\\=(5x+1)(5x-1)\\\\=(5x)^2-1^2\\\\=25x^2-1.[/tex]

Thus, the required product is [tex]25x^2-1.[/tex]