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In Mathematics / High School | 2014-04-27

Which two values of \( x \) are roots of the polynomial below?

\[ x^2 + 5x + 9 \]

Asked by katiealex

Answer (3)

I'm assuming x2 means x^2, so the polynomial is unable to be factored so you plug it into the quadratic formula. (-b+/- sqr(4ac-a^2))/2a. Once you do this your final product is positive/negative 7/9

Answered by juniorsrosie | 2024-06-10

Since 2x and 5x have the same variable u have to add them 2x + 5x = 7x + 9 7x + 9 will be the answer

Answered by meme4 | 2024-06-10

The polynomial x 2 + 5 x + 9 does not have real roots, as its discriminant is negative. The roots are complex and given by x 1 ​ = 2 − 5 + i 11 ​ ​ and x 2 ​ = 2 − 5 − i 11 ​ ​ .
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Answered by juniorsrosie | 2024-12-23