Question

(а-4)во 2 степени +8а при а=0,5

Answer 1

............................

Answer 2

(a-4)^2=a^2-8a+16
a^2-8a+8a+16=a^2+16
При а=0,5: (0,5)^2+16=65/4=13 и 13/4
Мне так кажется)

Answer 3

To evaluate the expression (а-4)во 2 степени + 8а when а = 0.5, follow these steps:

1. Substitute the value of а with 0.5 in the expression: (0.5 - 4)^2 + 8 * 0.5

2. Perform the arithmetic operations inside the parentheses: (-3.5)^2 + 8 * 0.5

3. Square the value inside the parentheses: 12.25 + 8 * 0.5

4. Perform the multiplication: 12.25 + 4

5. Finally, add the two values: 16.25

So, when а = 0.5, the expression (а-4)во 2 степени + 8а evaluates to 16.25.