Question

Evaluate 2(x-4) + 3x - x2 for x = 3.
А. -6
В. -2
с. 2
D. 6

Answer 1

The Answer is: B. -2.

Explanation:

2(x - 4) + 3x - x^2 =

2x - 8 + 3x - x^2 =

Let x = 3

2(3) - 8 + 3(3) - 3^2 =

6 - 8 + 9 - 9 =

6 - 8 = -2

Proof:

2(3 - 4) + 9 - 9 =

2(-1) = -2