Presentation Transcript
Multiplying polynomials :Multiplying polynomials In this PowerPoint presentation you will see two alternative approaches to polynomial multiplication. To see multiplication using a table click here.
Using a table :Using a table Multiply x² + 3x – 2 by 2x² – x + 4
Using a table :Using a table Multiply x² by 2x²
Using a table :Using a table Multiply x² by 2x²
Using a table :Using a table Multiply 3x by 2x²
Using a table :Using a table Multiply 3x by 2x²
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Fill in the rest of the table in the same way
Using a table :Using a table Now add up all the terms in the table First the term in x4 (x² + 3x – 2)(2x² - x + 4) = 2x4
Using a table :Using a table Now add up all the terms in the table then the terms in x³ (x² + 3x – 2)(2x² - x + 4) = 2x4 + 5x³
Using a table :Using a table Now add up all the terms in the table then the terms in x² (x² + 3x – 2)(2x² - x + 4) = 2x4 + 5x³ - 3x²
Using a table :Using a table Now add up all the terms in the table (x² + 3x – 2)(2x² - x + 4) = 2x4 then the terms in x + 5x³ - 3x² + 14x
Using a table :Using a table Now add up all the terms in the table (x² + 3x – 2)(2x² - x + 4) = 2x4 and finally the constant term + 5x³ - 3x² + 14x - 8