Question

Given the quadratic expression x^2 - 7x + 2, evaluate the expression when x = -4.

A. 42
B. 34
C. 18
D. 14

Answer 1

When x = -4, the quadratic expression x^2 - 7x + 2 evaluates to 46 after substituting -4 into the expression and calculating the result.

Step-by-step explanation:

The student is asked to evaluate the quadratic expression x^2 - 7x + 2 when x = -4. To do this, we simply substitute -4 into the expression in place of x:

(-4)^2 - 7(-4) + 2

Now, we calculate the values step-by-step:

1. (-4)^2 = 16,
2. -7(-4) = 28,
3. Adding these up along with the constant term 2 gives us: 16 + 28 + 2.

The sum of these numbers is 46, which means the expression evaluates to 46 when x = -4. However, since this number is not among the options provided, the student might need to recheck their question or options.