Question

(6-5m)(5m+6)+(5m-4)^2​

Answer 1

(6-5m)(5m+6)+(5m-4)²=(6-5m)(6+5m)+(5m-4)²=36 - 25m²+25m² - 40m+16=52 - 40m

Answer 2

Ответ:

30m+36-25m-30m+25m-16.

Сокращаем. Неизвестное переносим вправо и решаем..

25m и - 25m сокращается, так как числа противоположные..

30m и - 30m потому же принципу.

36-16

И в итоге 20

Answer 3

To simplify the given expression $(6-5m)(5m+6) + (5m-4)^2$, let's start by expanding and combining like terms:

$(6-5m)(5m+6) + (5m-4)^2$

First, distribute the terms in the first parenthesis:

$(6 \cdot 5m + 6 \cdot 6 - 5m \cdot 5m - 5m \cdot 6) + (5m-4)^2$

Now, combine like terms:

$(30m + 36 - 25m^2 - 30m) + (5m-4)^2$

Combine the $30m$ and $-30m$ terms:

$(6 - 25m^2) + (5m-4)^2$

Now, let's expand the square:

$6 - 25m^2 + 25m^2 - 40m + 16$

Combine like terms:

$-40m + 22$

So, the simplified form of $(6-5m)(5m+6) + (5m-4)^2$ is $-40m + 22$.