Simplifying Variable Expressions Quiz
To simplify variable expressions, we must use 2 techniques:
- Firstly, we must add or subtract like terms like those with the same variable (like \(3x, -7x\)) or those with the same powers (like \(2x^2, -3x^2\))
- Next, we must apply distributive law if possible. The distributive property states that multiplication distributes over addition, i.e., \(x(y + z) = (xy + xz)\).