Question

(3-c)(c-3)+c²-3 при c=-0,5​

Answer 1

Ответ:

-15

Пошаговое объяснение:

(3-c)(c-3)+c²-3 = 3с - 9 - с² + 3с + с² - 3 = 6с - 12

при c= -0,5

6с - 12 = 6*(-0,5) - 12 = -3 - 12 = -15

Answer 2

Ответ:

-c²+6c-9+c²-3

6c-12

-3-12=-15

Answer 3

To evaluate the expression (3-c)(c-3)+c²-3 when c = -0.5, we substitute -0.5 in place of c in the expression and perform the calculations:

(3 - (-0.5))((-0.5) - 3) + (-0.5)² - 3

First, let's simplify the inner expressions: (3 + 0.5)(-0.5 - 3) + (-0.5)² - 3 (3.5)(-3.5) + 0.25 - 3

Now, let's calculate the values: (-12.25) + 0.25 - 3 -12 + 0.25 - 3 -11.75 - 3 -14.75

Therefore, when c = -0.5, the expression (3-c)(c-3)+c²-3 evaluates to -14.75.