Question

ИЗИ ПРИМЕР а^2-9 help me pleace

Answer 1

Это а в квадрате?
если да то
$a {}^{2} - 9 = a {}^{2} - 3 {}^{2} = (a - 3) \times (a + 3)$

Answer 2

Sure! It looks like you want to simplify the expression "a^2 - 9." To do that, we can factor the expression using the difference of squares formula.

The difference of squares formula is: a^2 - b^2 = (a + b)(a - b)

In your case, a^2 - 9 can be rewritten as (a)^2 - (3)^2.

Now, we can see that a = a and b = 3, so we have:

a^2 - 9 = (a + 3)(a - 3)

That's the simplified form of the expression "a^2 - 9."