Question

(x+3 )во 2 степени -3(x+3)

Answer 1

Ответ:

$(x+3)^2 - 3(x+3) = x^2 + 6x + 9 - 3x - 9 = x^2+3x$

Если нужно, можно ещё Х вынести за скобки. Получится

$= x(x+3)$

Answer 2

решение и ответ во вложении

Answer 3

To simplify the expression "(x+3)^2 - 3(x+3)," we'll follow these steps:

Step 1: Expand (x+3)^2. Step 2: Distribute the "-3" across (x+3). Step 3: Combine like terms.

Let's proceed with the calculations:

Step 1: Expand (x+3)^2 (x+3)^2 = (x+3) * (x+3) = x^2 + 2x3 + 3^2 = x^2 + 6x + 9

Step 2: Distribute the "-3" across (x+3) -3(x+3) = -3x - 33 = -3x - 9

Step 3: Combine like terms Now, let's combine the two terms we obtained in Steps 1 and 2: (x^2 + 6x + 9) - (3x + 9)

We have two negative signs, which will turn the subtraction into addition: (x^2 + 6x + 9) + (-3x - 9)

Finally, combine like terms: x^2 + (6x - 3x) + (9 - 9)

Simplify: x^2 + 3x + 0

The simplified expression is: x^2 + 3x