Question

A²-9/6a²-18a при а=-0.3

Answer 1

Ответ:

а² - 3/2а² (9 и 6 сокращаются) - 18а = (-0,3)² - 3/2*(-0,3)² + 18*0,3 = 0,09 - 3/0,18 + 5,4 = (0,09*0,18) - 3 + (5,4*0,18) = 0,0162 - 3 + 0,972 = -1,0398

Answer 2

To find the value of the expression A² - 9 / 6a² - 18a when a = -0.3, we simply substitute the value of a into the expression and perform the calculations step by step.

Given expression: A² - 9 / 6a² - 18a

Substitute a = -0.3:

A² - 9 / 6(-0.3)² - 18(-0.3)

Now, let's calculate the values:

a² = (-0.3)² = 0.09 6a² = 6 * 0.09 = 0.54 18a = 18 * (-0.3) = -5.4

So the expression becomes:

A² - 9 / 0.54 - (-5.4)

Now, calculate the values inside the parentheses:

A² - 9 / 0.54 + 5.4

Now, let's simplify the expression:

A² - 9 / 5.94

Without further information or the value of A, it's not possible to fully simplify the expression. However, this is the expression's value when a = -0.3. If you have the value of A, you can substitute it into the expression and find its exact value.