7th 4-4 Expand Expressions

Front

What is an expression that represents the weight of an object that weighs 12 pounds and increases by 0.5 pound per month m?

Back

12 + 0.5m

Front

Expand and simplify the expression: -(2y - 1).

Back

-2y + 1

Front

Expand and simplify the expression: -3(2r + 5s).

Back

-6r - 15s

Front

Back

Front

What is the equivalent expression for -2v + (-4) + 8 + (-3v)?

Back

-5v + 4

Front

Define 'expression' in mathematics.

Back

An expression is a combination of numbers, variables, and operators (such as + and -) that represents a value.

Front

What does it mean to 'expand' an expression?

Back

To expand an expression means to remove parentheses by distributing any factors and combining like terms.

Front

What is a 'variable' in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value in mathematical expressions or equations.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, allowing you to multiply a single term by each term in a parenthesis.

Front

What are 'like terms'?

Back

Like terms are terms that have the same variable raised to the same power, allowing them to be combined.