Question

Evaluate the following expression when x = -1, y = 2, z = -3, and w = 4.

8x^3
A) -8
B) 8
C) -64
D) 64

Answer 1

To evaluate the expression 8x³ when x = -1, substitute the value of x into the expression. When x = -1, the expression 8x³ is equal to -8. Therefore, the correct answer is A) -8.

Step-by-step explanation:

To evaluate the expression 8x³ when x = -1, substitute the value of x into the expression:

8(-1)³

Now, calculate the result:

8 × (-1)³ = 8 × (-1)

= -8

So, when x = -1, the expression 8x³ is equal to -8.

Therefore, the correct answer is:

A) -8