To simplify the expression 14a^3b^5 - 21a^4b, we need to first combine like terms.
14a^3b^5 - 21a^4b can be rewritten as:
(14 - 21)a^3b^5 - a^4b
This simplifies to:
-7a^3b^5 - a^4b
Therefore, the simplified expression is -7a^3b^5 - a^4b.
To simplify the expression 14a^3b^5 - 21a^4b, we need to first combine like terms.
14a^3b^5 - 21a^4b can be rewritten as:
(14 - 21)a^3b^5 - a^4b
This simplifies to:
-7a^3b^5 - a^4b
Therefore, the simplified expression is -7a^3b^5 - a^4b.