Question

Evaluate the following: 2x² - 3y³ + 4z when x = -1, y = -2, and z = 3

(Be sure to use parentheses on your calculator when substituting!) *
A. 28
B. 38
C. 18
D. 8

Answer 1

By substituting x = -1, y = -2, and z = 3 into the expression 2x² - 3y³ + 4z, the result is 2(1) - 3(-8) + 12, which simplifies to 38.

Step-by-step explanation:

The expression provided is 2x² - 3y³ + 4z. We need to evaluate this expression by substituting the values x = -1, y = -2, and z = 3 into the expression.

By substituting these values, the expression becomes:

2(-1)² - 3(-2)³ + 4(3) = 2(1) - 3(-8) + 12 = 2 + 24 + 12 = 38

Therefore, the correct answer is B. 38.