Question

(3×+1)(3×-1)-(3×-2)(3×+2)​

Answer 1

Ответ:

9x^2-1 - 9x^2-2

Объяснение:

Answer 2

Ответ:

Ответ: 3. очень легко. Но долго писать не мог. Если надо, пишите?

Answer 3

To simplify the expression (3x + 1)(3x - 1) - (3x - 2)(3x + 2), you can use the distributive property to expand and then combine like terms:

(3x + 1)(3x - 1) - (3x - 2)(3x + 2)

= (3x * 3x + 3x * (-1) + 1 * 3x + 1 * (-1)) - (3x * 3x - 3x * 2 - 2 * 3x - 2 * 2)

Now, multiply and simplify:

= (9x^2 - 3x + 3x - 1) - (9x^2 - 6x - 6x - 4)

Now, combine like terms within each parenthesis:

= (9x^2 - 1) - (9x^2 - 12x - 4)

Next, distribute the negative sign to both terms inside the second parenthesis:

= 9x^2 - 1 - 9x^2 + 12x + 4

Now, combine like terms again:

= (9x^2 - 9x^2) + (12x - 1 + 4)

The 9x^2 terms cancel out, and you're left with:

= 12x - 1 + 4

= 12x + 3

So, the simplified expression is 12x + 3.