Question

Evaluate 2(x-4) + 3x - x2 for x= 3.

0 A. -2
000
B. 2
2
о с. -6
O D. 6

Answer 1

A. -2

Explanation:

To evaluate the expression 2(x-4) + 3x - x^2 for x = 3, simply substitute the value of x into the expression and calculate:

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

Now, perform the calculations step by step:

2(-1) + 9 - 9

Now, multiply and add:

-2 + 9 - 9

Now, add and subtract:

(-2 + 9) - 9

Finally, calculate:

7 - 9

Now, subtract:

-2

So, when x = 3, the expression 2(x-4) + 3x - x^2 evaluates to -2.