Question

Which among the following is $NOT$ an algebraic expression?

• A. $81x+96y$
• B. $28a-49c=64$
• C. $54p+32q-14r$
• D. $125g+144h-25i$

Answer 1

The correct option is B $28a-49c=64$

$\underset{–}{\text{Algebraic Expression:}}$
An algebraic expression is a number, a variable, or a combination of numbers and variables and operation symbols.

$\underset{–}{\text{Algebraic Equation:}}$
An equation is made up of two expressions connected by an equal sign.

$\bullet$ In option (a.), we have $\underset{–}{81x+96y}$. It contains terms connected together with $+$ and $-$ only. There is no equal to ($=$)sign. Hence, it is an algebraic expression.

$\bullet$ In option (b.), we have $\underset{–}{28a-49c=64}$. It contains two algebraic expressions conneted by an equal sign, and so it is $NOT$ an algebraic expression but it is an $algebraicequation$.



$\bullet$ In option (c.), we have $\underset{–}{54p+32q-14r}$.
It contains terms connected together with $+$ and $-$ only. There is no equal to ($=$)sign. Hence, it is an algebraic expression.

$\bullet$ In option (d.), we have $\underset{–}{125g+144h-25i}$. It contains terms connected together with $+$ and $-$ only. There is no equal to ($=$)sign. Hence, it is an algebraic expression.

Therefore, option (b.) is the correct answer.