Classify the following algebraic expression as monomials, binomials, trinomials, and polynomial :
(i) 7x (ii) 5y-7z (iii) `3x^3 - 5x^2 - 11` (iv) `1- 8a - 7a^2 - 7a^3` (v) 5m - 3 (vi) a (vii) 4 (viii) `3y^2 - 7y + 5`

Explanation

Monomials : (i) 7x : (vi) a: (vii) 4
Binomials : (ii) : 5y - 7z : (v) 5m - 3
Trinomials : (iii) `3x^3 - 5x^2 - 11` : (viii) `3y^2 - 7y +5`
Polynomial : (iv) `1- 8a - 7a^2 - 7a^3`