Question

Which of the following is/are algebraic expression/s?

• A. 2 $\times$ 8 + 9
• B. 2$x$ + 3
• C. $\frac{21}{5}$ + 8
• D. $\frac{5}{x}$ $\times$ 12

Answer 1

Answer: (B), (D)

The correct options are
B 2$x$ + 3
D $\frac{5}{x}$ $\times$ 12

An algebraic expression should have numbers or constants, variables or unknowns (usually represented by alphabets) and mathematical operation like multiplication, addition etc.
Hence from the given option $2x+3$ and $\frac{5}{x}\times 12$ are algebraic expressions.