Question

(5х+1) (5х-1)=??? заранее спасибо

Answer 1

(5х - 1)(5х + 1) = 25х^2 - 1

Answer 2

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

Answer 3

To simplify the expression (5x + 1)(5x - 1), you can use the FOIL method (First, Outer, Inner, Last) or the distributive property. Here's how it works:

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

Now, multiply the terms:

1. 5x * 5x = 25x^2
2. 5x * (-1) = -5x
3. 1 * 5x = 5x
4. 1 * (-1) = -1

Now combine the like terms:

25x^2 - 5x + 5x - 1

The middle terms (-5x and +5x) cancel each other out, so the final simplified expression is:

25x^2 - 1

So, (5x + 1)(5x - 1) simplifies to 25x^2 - 1.