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 one year ago
What is a simpler form of the following expressions?
(7p – 8)(7p + 8) (1 point)
49p2 + 112p + 64
49p2 – 112p – 64
49p2 + 64
49p2 – 64
 one year ago
What is a simpler form of the following expressions? (7p – 8)(7p + 8) (1 point) 49p2 + 112p + 64 49p2 – 112p – 64 49p2 + 64 49p2 – 64

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JonathanJ
 one year ago
Best ResponseYou've already chosen the best response.0Remember FOIL, First, Outside, Inside, Last. \[(7p8)(7p+8)\] First \[7p*7p = 49p^{2}\] Outside \[7p*8 = 56p\] Inside \[8*7p = 56p\] Last \[8*8 = 64\] Add all these up \[49p^{2}+56p56p64 = 49p^{2}64\] This also helps where if you have the form \[(Ax+b)(Axb) = A^{2}x^{2}  b^{2}\]
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