Algebraic Expressions and Identities

Question 1

Criteria for terms to be bi-,mo-,tri- or polynomials.

Answer 1

The terms should have non zero coefficients((with
variables having non negative integers as exponents)

Question 2

Types of Expressions

Answer 2

• Monomials (1 terms)
• Binomials (2 terms)
• Trinomials (3 terms)
• Polynomials (4 or more terms)

Question 3

Identity 1

Answer 3

(a + b)^2 = a^2+ 2ab + b^2

Question 4

Identity 2

Answer 4

(a – b)
2
= a
2
– 2ab + b
2

Question 5

Identity 3

Answer 5

(a + b) (a – b) = a^2 – b^2

Question 6

Identity 4

Answer 6

(x + a) (x + b) = x^2 + (a + b) x + ab