Answer
False
Work Step by Step
Similar terms are terms whose literal coefficients (or variables) are exactly the same, including their exponents.
Terms like the ones below are similar terms:
(i) $2x$ and $-5x$
(ii) $3xy$ and $-5xy$
(iii) $6x^2y$ and $3x^2y$
The given expressions are not similar terms because they have different sets of variables. After all, one expression includes the variable, z, while the other expression does not.