Algebraic Expressions

Front

What are variables in an algebraic expression?

Back

Variables are symbols that represent unknown values, typically denoted by letters such as p, h, n, x, etc.

Front

How do you evaluate an algebraic expression?

Back

To evaluate an algebraic expression, substitute the values of the variables into the expression and perform the arithmetic operations.

Front

What is the value of the expression n^2 - 6 + 3 when n = 5?

Back

22

Front

Evaluate the expression 5y + 2 when y = 3.

Back

17

Front

What is the result of the expression 6 + 7b - 3a when a = 2 and b = 8?

Back

56

Front

How do you simplify the expression x^2 + 2x + 3 when x = 4?

Back

Substituting x = 4 gives 4^2 + 2(4) + 3 = 16 + 8 + 3 = 27.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What is the difference between a term and a coefficient in an algebraic expression?

Back

A term is a single mathematical expression, while a coefficient is a numerical factor in a term.

Front

What does it mean to evaluate an expression?

Back

Evaluating an expression means calculating its value by substituting the variables with their respective values.

Front

What is the standard form of a polynomial?

Back

The standard form of a polynomial is written in descending order of the degree of its terms.