Question

A²-6a+2 , при а=3-√2 Найти значение выражения.

Answer 1

a²-6a+2=(3-√2)²-6(3-√2)+2=9-6√2+2-18+6√2+2=9+4-18=-5

Answer 2

To find the value of the expression A² - 6a + 2 when a = 3 - √2, we need to substitute the value of a into the expression and then calculate the result.

Given expression: A² - 6a + 2

Substitute a with 3 - √2: A² - 6(3 - √2) + 2

Now, distribute the -6: A² - 18 + 6√2 + 2

Combine the constant terms: A² - 16 + 6√2

So, the value of the expression A² - 6a + 2 when a = 3 - √2 is A² - 16 + 6√2.