Question

1)a²-в² 2)(a+в)² 3)(a-в)²

Answer 1

Ответ:

1) (a-b)(a+b)

2) a^2+2ab+b^2

3) a^2-2ab+b^2

Answer 2

Alright, let's simplify these expressions:

1. $a^2 - b^2$ This is a difference of squares and can be factored as $(a + b)(a - b)$.

2. $(a + b)^2$ This is the square of a binomial and can be expanded as $a^2 + 2ab + b^2$.

3. $(a - b)^2$ Similarly, the square of $a - b$ can be expanded as $a^2 - 2ab + b^2$.

So, in summary:

1. $a^2 - b^2 = (a + b)(a - b)$
2. $(a + b)^2 = a^2 + 2ab + b^2$
3. $(a - b)^2 = a^2 - 2ab + b^2$