Question

(а–3)²–6(2–а) при а =0.5​

Answer 1

Ответ:

Объяснение:

=а²-6а+9-12+6а=а²-3

(0.5)²-3=0.25-3=-2.75

Answer 2

Ответ: смотри в приложении ↓

Answer 3

To find the value of the expression (а–3)²–6(2–а) when а = 0.5, we simply substitute the value of а into the expression and then perform the calculations step by step:

Step 1: Substitute а with 0.5 in the expression: (0.5 – 3)² – 6(2 – 0.5)

Step 2: Perform the calculations inside the parentheses: (-2.5)² – 6(1.5)

Step 3: Square the value inside the first parentheses: 6.25 – 6(1.5)

Step 4: Multiply 6 and 1.5: 6.25 – 9

Step 5: Perform the subtraction: -2.75

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