Question

Which of the following is a pair of unlike algebraic terms?

• A. $-pqr,0.8qrp$
• B. $a^{2}bc,-6b{a}^{2}c$
• C. $1.5xzy,3xyz$
• D. $-t,48y$

Answer 1

Answer: (D)

$-t,48y$

(i)The terms having the same variable with same exponents but different coefficient are called Like terms.

(ii)The terms having the same variable with different exponents or different variable with same exponents are called Unlike terms .

In $A,B,C$ the variables are same then these are like terms.

In (D) $-t,48y$ variables are not same.

Thus, it is a pair of unlike algebraic terms.