kendallknight80 kendallknight80

24-07-2018
Mathematics

contestada

What is the product of 2x-9 and 2x+9

What is the product of 2x9 and 2x9 class=

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lifelearner27 lifelearner27

24-07-2018

B, the product is 4x^2 -81

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Аноним Аноним

24-07-2018

(2x - 9) (2x + 9) = (2x)² - (9)² = 4x² - 81

Answer: (B) 4x² - 81

Answer Link

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