Question

(2-c)²-c(c+u) при c=0,5​

Answer 1

Ответ:

но вроде будет  0

Объяснение:

раскладываем

4-4c+c²-c²+4c

сократим подобные слагаемые

4-4c-4c

4-2-2

Answer 2

To evaluate the expression (2 - c)² - c(c + u) when c = 0.5, we substitute the value of c into the expression:

(2 - 0.5)² - 0.5(0.5 + u)

Simplifying further:

(1.5)² - 0.5(0.5 + u)

Calculating the square of 1.5:

2.25 - 0.5(0.5 + u)

Distributing the -0.5 to both terms inside the parentheses:

2.25 - 0.25 - 0.5u

Combining like terms:

2.25 - 0.25 - 0.5u

Simplifying further:

2 - 0.5u

Therefore, when c = 0.5, the expression (2 - c)² - c(c + u) simplifies to 2 - 0.5u.