Identify terms which contain and give the coefficient of y².

(i) 8 - xy²

(ii) 5y² + 7x

(iii) 2x²y - 15xy² + 7y²

Identify the numerical coefficients of terms (other than constants) in the following expression:

(i) 5 - 3t²

(ii) 1 + t + t² + t³

(iii) x + 2xy + 3y

(iv) 100m + 100n

(v) -p²q² + 7pq

(vi) 1.2a + 0.8b

(vii) 3.14r²

(viii) 2(l + b)

(ix) 0.1y + 0.01y²

Identify terms which contain x and give the coefficient of x.

(i) y²x + y

(ii) 13y² - 8yx

(iii) x + y + 2

(iv) 5 + z +zx

(v) 1 + x +xy

(vi) 12xy² + 25

(vii) 7x + xy²

Classify into monomials, binomials and trinomials.

(i) 4y – 7z

(ii) y²

(iii) x + y – xy

(iv) 100

(v) ab – a – b

(vi) 5 – 3t

(vii) 4p²q – 4pq²

(viii) 7mn

(ix) z² -3z + 8

(x) a² + b²

(xi) z² + z

(xii) 1 + x + x²

State whether a given pair of terms is of like or unlike terms.

(i) 1, 100

(ii) -7x,

(iii) -29x, -29y

(iv) 14xy, 42yx

(v) 4m²p, 4mp²

(vi) 12xz, 12x²z²