Question

(a-3)^2-6(2-a) при а=0,5​

Answer 1

Вот ответ. Написал и в десятичной и обычной дроби.

Answer 2

To evaluate the expression (a-3)^2 - 6(2-a) when a = 0.5, follow these steps:

Step 1: Substitute the value of a into the expression. Step 2: Perform the arithmetic operations.

Let's proceed:

Step 1: (a-3)^2 - 6(2-a)

Substitute a with 0.5: (0.5-3)^2 - 6(2-0.5)

Step 2: Now, perform the arithmetic operations inside the parentheses first: (-2.5)^2 - 6(1.5)

Next, calculate the square of -2.5: 6.25 - 6(1.5)

Now, perform the multiplication: 6.25 - 9

Finally, subtract: -2.75

So, when a = 0.5, the expression (a-3)^2 - 6(2-a) evaluates to -2.75.