Question

(m-3) * (m+3) - m* (m+2)

Answer 1

Ответ:

Пошаговое объяснение:

(m-3) * (m+3) - m* (m+2) = m² + 3m - 3m - 9 - m² - 2m = -2m - 9

Answer 2

Ответ:

Пошаговое объяснение:

(м-3) * (м+3) - м*(м+2) раскроем скобки:

м^2 - 9 - м^2 - 2*м приведём подобные

-2*м -9

Ответ: -2*м - 9

Answer 3

To simplify the expression, let's expand and simplify each term:

(m - 3) * (m + 3) - m * (m + 2)

Expanding the first term:

(m * m + m * 3 - 3 * m - 3 * 3) - m * (m + 2)

Simplifying:

(m^2 + 3m - 3m - 9) - m * (m + 2)

Combining like terms:

(m^2 - 9) - m * (m + 2)

Next, distribute the negative sign to the second term:

m^2 - 9 - m^2 - 2m

Simplifying:

(m^2 - m^2) + (-2m) - 9

The m^2 terms cancel out:

-2m - 9

So the simplified expression is -2m - 9.