A variable is any symbol representing one fixed value.

A coefficient is any symbol representing possible values of a quantity.

In the expression 70r, r is a variable while 70 is the constant.

In the expression $$\left(-3x\right)^5$$ , 5 is the base.

Evaluating the expression $$\left(-6\right)^3$$ can be written as $$-6\times-6\times-6$$ .

In the algebraic expression " $$4x^{2\ }+5x-3$$ ", there are 3 terms present.

In the algebraic expression " $$4x^{2\ }+5x-3$$ ",

the numerical coefficient is $$x^2$$ , and the literal coefficient is $$4$$ .

A polynomial is a special kind of expression where each term is a constant, a variable, or a product of constants and variables raised to a whole number exponents.

A Monomial is a polynomial of two terms while a Binomial is a polynomial of one term.