Evaluate Expressions Check In (Ciowela)

Front

Evaluate the expression: -3x² - 5x + 7 when x = -2

Back

5

Front

Evaluate the expression: -x - 6x + 10 when x = 5

Back

-25

Front

Evaluate -2x + -3y if x = 10 and y = -6

Back

-2

Front

Evaluate 4n - n² for n = -3

Back

-21

Front

What is the value of 3x² - 7 when x = -5?

Back

68

Front

What is the formula for evaluating an expression?

Back

Substitute the value of the variable into the expression and perform the operations.

Front

Define 'expression' in mathematics.

Back

A combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What does it mean to 'evaluate' an expression?

Back

To calculate the value of the expression by substituting the variables with given numbers.

Front

What is the order of operations in mathematics?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - PEMDAS.

Front

What is a variable in mathematics?

Back

A symbol (often a letter) that represents an unknown value.