LAB

LAB

Objectives

• becoming familiar with the concept of numbers, operators, and arithmetic operations in Python
• performing basic calculations

Scenario

Take a look at the code in the editor: it reads a float value, puts it into a variable named x, and prints the value of the variable named y. Your task is to complete the code in order to evaluate the following expression. 

3x3 - 2x2 + 3x - 1

The result should be assigned to y. 

Remember that classical algebraic notation likes to omit the multiplication operator - you need to use tit explicitly. Note how we cahnge data type to make sure that x is of type float. 

Keep your code clean and readable, and text is using the data we've provided, each time assigning it to the x variable (by hardcoding it).Don't be discouraged by any initial failures. Be persistent and inquisitive. 

Test Data

Sample input

x = 0

x = 1

x = -1

Expected Output

y = -1.0

y = 3.0

y = -9.0