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Durviel
 3 years ago
write a thirddegree polynominal using these numbers
1, 2i
Durviel
 3 years ago
write a thirddegree polynominal using these numbers 1, 2i

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shaan_iitk
 3 years ago
Best ResponseYou've already chosen the best response.1if the polynomial has only real coeffecients then roots would be x= 1, 2  i, 2+i p(x) = (x1)(x 2+i)(x  2i)

Durviel
 3 years ago
Best ResponseYou've already chosen the best response.0how do you write that using exponents??

shaan_iitk
 3 years ago
Best ResponseYou've already chosen the best response.1you multiply = > (x1) * (x^2 + 5 4x) = (x^3 +5x  4x^2  x^2 5 +4x) = x^3 5x^2 +9x  5
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