Question

The value of the function f(x) = 3x2 − 2x for x = 4

Answer 1

Answer: If that is a 3 times 2 then you answer is 14

However, if the equation is 3 time x squared then the answer is 40  

Step-by-step explanation:

this is because 3 x 2 is 6 and -2 x 4 is -8.  6-(-8) would be 6 + 8 because -(-8) cancels out to just 8.

Answer 2

Answer:

40

Step-by-step explanation:

Evaluate 3 x^2 - 2 x where x = 4:

3 x^2 - 2 x = 3×4^2 - 2×4

4^2 = 16:

3×16 - 2×4

3×16 = 48:

48 - 2×4

-2×4 = -8:

-8 + 48

| 4 | 8

- | | 8

| 4 | 0:

Answer:  40