Multiplication of algebraic expressions | Business Math & Economics lecture

 Business Math   

Multiplication of algebraic expressions

Business Math & Economics lectures

Multiplication of algebraic expressions | Business Math

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Multiplication of algebraic expressions

Business Math & Economics lectures

Today we will learn the multiplication of algebraic expression. There are some basic rules of to keep in mind while solving these questions. We will learn what to solve a question of multiplication in math.

 Example 1:

= (2x + 2) (3x - 5)

= 2x (3x – 5) + 2 (3x – 5)

Multiply the first bracket with 2x and then  multiply the second bracket with 2.

= 6x² - 10x + 6x – 10

Now add the relevant figures.

= 6x² - 4x + 6x – 10

Example 2:

= (x + 3) (x² -7x + 1)

= x (x² -7x + 1) + 3 (x² -7x + 1)

Multiply the first bracket with x and then multiply the second bracket with 3.

= x³ - 7x² + x + 3x² – 21x +3

Now add the relevant figures.

= x³ - 4x² - 20 x + 3