Question

25a2-9в2=(5а)2-(3в)2=

Answer 1

Используя:

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

Решение:

$25a^2-9b^2=(5a)^2-(3b^2)=(5a-3b)(5a+3b)$

Answer 2

It looks like you've provided an equation:

25a^2 - 9b^2 = (5a)^2 - (3b)^2.

To simplify this equation, let's break it down step by step:

1. Starting with the left side of the equation: 25a^2 - 9b^2

2. Now, let's simplify the right side of the equation using the difference of squares formula, which states that a^2 - b^2 = (a + b)(a - b): (5a)^2 - (3b)^2 = 25a^2 - 9b^2

3. Since the right side of the equation simplifies to the same expression as the left side, the equation is true: 25a^2 - 9b^2 = 25a^2 - 9b^2

In other words, the original equation is already simplified, and the equation is true for any values of 'a' and 'b'.