kaitlinreijones00 kaitlinreijones00

02-07-2019
Mathematics

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5 MINUTE TIME LIMIT LEFT Consider the polynomial expression below.

[tex]x^{3} -3x^{2} +81x-243[/tex]

Rewrite the polynomial in the form (x - d)(x - e)(x + f), where d is a real number and e and f are complex numbers of the form bi.

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konrad509 konrad509

02-07-2019

[tex]x^3-3x^2+81x-243=\\x^2(x-3)+81(x-3)=\\(x^2+81)(x-3)=\\(x-3)(x-9i)(x+9i)[/tex]

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