desirjeanpierre desirjeanpierre

13-02-2017
Mathematics

contestada

Multilpy and check: (4c+7)(4c-7),and expanding (8g+6)^2

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marihelenh marihelenh

13-02-2017

Foil out for the first part:
[tex](4c+7)(4c-7) 16c^2+7c-7c-49 16c^2-49[/tex]

To expand, use foil again
[tex](8g+6)(8g+6)[/tex]

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