write two terms which are like
(i) 7xy (ii) 4mn2 (iii) 21.
(i) Two terms like 7xy are: –3xy and 8xy.
(ii) Two terms like 4mn2 are: 6mn2 and –2n2m.
(iii) Two terms like 21 are: 51 and -7b.
Classify the coefficient of each term in the expression
x2y2 – 10x2y + 5xy2 – 20.
Give five examples of expressions containing one variable and five examples of expressions containing two variables.
Classify the following polynomials as monomials, binomials, trinomials –z + 5, x + y + z, y + z + 100, ab – ac, 17
Construct:
(a) 3 binomials with only x as a variable;
(b) 3 binomials with x and y as variables;
(c) 3 monomials with x and y as variables;
(d) 2 polynomials with 4 or more terms.
