amanda8351 amanda8351

01-11-2018
Mathematics

contestada

factory completely 16x2-81

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konrad509 konrad509

01-11-2018

[tex]16x^2-81=(4x-9)(4x+9)[/tex]

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trevordoyleione trevordoyleione

01-11-2018

This is a difference of squares

presuming you mean

16x² - 81

16 is a square of 4

x² is a square of x

81 is a sqaure of 9

and since they are subtracted from each other its a difference of squares

so its

(4x + 9) (4x - 9)

Answer Link

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