logging in or signing up Multiplying Polynomails omeros Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 69 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: June 29, 2009 This Presentation is Public Favorites: 0 Presentation Description multiplying polynomails foil method Comments Posting comment... Premium member Presentation Transcript Multiplying polynomials : Multiplying polynomials To see multiplication “in your head” click here. FOIL METHOD FOIL Multiplying in your head : Multiplying in your head Multiply x² + 3x – 2 by 2x² – x + 4 (x² + 3x – 2)(2x² – x + 4) Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Start by multiplying the first terms in each bracket to give a term in x4 = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x³. There are two pairs. – x³ = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2) ( 2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x³. There are two pairs. – x³ + 6x³ = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x². There are three pairs. – x³ + 6x³ + 4x² = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x². There are three pairs. – x³ + 6x³ + 4x² = 2x4 - 3x² Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x². There are three pairs. – x³ + 6x³ + 4x² - 3x² - 4x² = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x. There are two pairs. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x. There are two pairs. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x + 2x Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Finally multiply the last two terms in each bracket to give the constant term. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x + 2x - 8 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now simplify by collecting like terms. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x + 2x - 8 = 2x4 + 5x³ - 3x² + 14x - 8 Multiplying polynomials : Multiplying polynomials To see this example of multiplication “in your head” again click here. To end this presentation click here. You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Multiplying Polynomails omeros Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 69 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: June 29, 2009 This Presentation is Public Favorites: 0 Presentation Description multiplying polynomails foil method Comments Posting comment... Premium member Presentation Transcript Multiplying polynomials : Multiplying polynomials To see multiplication “in your head” click here. FOIL METHOD FOIL Multiplying in your head : Multiplying in your head Multiply x² + 3x – 2 by 2x² – x + 4 (x² + 3x – 2)(2x² – x + 4) Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Start by multiplying the first terms in each bracket to give a term in x4 = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x³. There are two pairs. – x³ = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2) ( 2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x³. There are two pairs. – x³ + 6x³ = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x². There are three pairs. – x³ + 6x³ + 4x² = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x². There are three pairs. – x³ + 6x³ + 4x² = 2x4 - 3x² Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x². There are three pairs. – x³ + 6x³ + 4x² - 3x² - 4x² = 2x4 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x. There are two pairs. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now look for pairs of terms which multiply together to give a term in x. There are two pairs. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x + 2x Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Finally multiply the last two terms in each bracket to give the constant term. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x + 2x - 8 Multiplying in your head : Multiplying in your head (x² + 3x – 2)(2x² – x + 4) Now simplify by collecting like terms. = 2x4 – x³ + 6x³ + 4x² - 3x² - 4x² + 12x + 2x - 8 = 2x4 + 5x³ - 3x² + 14x - 8 Multiplying polynomials : Multiplying polynomials To see this example of multiplication “in your head” again click here. To end this presentation click here.