Question

Which of the following are algebraic expressions?

• A. $x^2-5x+6$
• B. $a=4$
• C. $\frac{x}{2}-3$
• D. $4x+7=6$

Answer 1

Answer: (A), (C)

$\frac{x}{2}-3$

An algebraic expression consists of variables, constants and operators (+, -, /, x).
When an algebraic expression is equated to another algebraic expression or zero, it becomes an algebraic equation.

Hence, $\frac{x}{2}-3$ and $x^2-5x+6$ are algebraic expressions whereas, $a=4$ and $4x+7=6$ are algebraic equations.