45~YES, a REAL number(as one term).
3a+76+f~NO, three terms and includes addition.
3a^2~YES, product of a real number and a variable with a whole number exponent.
3*6af~NO, two terms.
100
(x+7)(x-3)
What is x^2-4x-21?
100
x^2 y^3 x^-3
----------------
x^5 y^-2 3^-3
What is 27y^5
------
x^6
100
7x+5=3x+8
What is x=3/4?
100
6(z-4)+2=14(z-2)+4
What is z=1/4?
200
a polynomial with just one term, consisting of a real number times one or more variables with whole number exponents