### Theory:

A term is either a single number or a variable or multiplied together by a number or a variable. In other words, the terms of expression are the parts that are separated by an algebraic operation.
Example:
$$5a$$ $$-$$ $$3$$. (In this case, $$5a$$ is the first term and, $$3$$ is the second term. So, we have $$2$$ terms.)
A coefficient is a number used for the multiplication of a variable.
Example:
The expression $$5a$$ $$-$$ $$3$$ has only one coefficient. (In this case, $$5$$ is coefficient of $$a$$. where $$5a$$ means $$5$$ times $$a$$. So $$5$$ is the numerical coefficient, $$a$$ is a variable, and $$3$$ is constant.)
Example:
In the following expression, list out the terms and coefficients:

$$4x^3y^2+2x^2-3x+4$$.

Terms:
• $$4x^3y^2$$ is the first term.
• $$2x^2$$ is the second term.
• $$-3x$$ is the third term.
• $$4$$ is the fourth term.
Coefficients:
• $$4$$ is the coefficient of $$x^3y^2$$.
• $$2$$ is the coefficient of $$x^2$$.
• $$-3$$ is the coefficient of $$x$$.