Question

3 а в квадрате +а+6 при а=-2

Answer 1

3*(-2)² + (-2) + 6 = 12 - 2 + 6 = 16

Answer 2

To evaluate the expression 3a^2 + a + 6 when a = -2, you simply substitute -2 for "a" and perform the calculations.

Let's do that:

3(-2)^2 + (-2) + 6

Now, calculate the values step by step:

3 * (-2)^2 = 3 * 4 = 12 (-2) + 6 = 4

Now, add the results:

12 + 4 = 16

So, when a = -2, the expression 3a^2 + a + 6 evaluates to 16.