Multiplication in Algebraic Expression (polynomial)

 

Welcome friends!

              Uptil now we have learnt about addition & subtraction of

 expression and use of exponents in algebraic expression.

              Today we are going to see the multiplication of Algebraic 

expression.

So,

        When multiplying two monomials, first multiply the coefficients along 

with the signs and then multiply the variables and their exponents if any.

Multiplication of Monomial with Monomial:

Multiplying a binomial by monomial

Steps: 1) Multiply each term in binomial by monomial.

          2) Add those answers together & simplify if necessary.

Multiplying a binomial by a binomial.

Each of the two terms in the first binomial…

                                      ….. is multiplied by …..

                      ….. each of the two terms in the second binomial.

Examples for Practice:

      1) Multiply:

i)            16xy ´ 18xy

ii)          23xy² ´ 4yz²

iii)        (12a+17b) ´ 4c

iv)        (4x+5y) ´ (9x+7y)

 

       2) A rectangle is (8x + 5) cm long and (5x + 3) broad. Find its area.

Thank you!

Hope you learn about Multiplication of Algebraic Expression (Polynomial).

You may visit this also:

Introduction to algebra ( Part I)

Introduction to Algebra (Part II)

Transposing Method of Solving Algebra

Order of Operations – BODMAS/PEMDAS

Algebra - Substitution

Introduction to Inequalities in Algebra

Introduction to Algebraic Expression.

Introduction to Addition & Subtraction of Algebraic Expression

 (Polynomial)

Degree of an Expression (Polynomial)

Use of exponents in algebra.

Algebra Index