Question

answer the above question ​

Answer 1

Step-by-step explanation:

$25 {x}^{2} - 1 \\ 25 {x}^{2} = 1 \\ {x}^{2} = \frac{1}{25}$

$x = \frac{1}{5}$

Answer 2

Answer:

We using the following formula to solve this question :

${a}^{2} - {b}^{2} = (a + b)(a - b)$

$\: \: \: \: 25 {x}^{2} - 1$

$= {(5x)}^{2} - {(1)}^{2}$

$= (5x + 1)(5x - 1)$