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Mathematics 17 Online
OpenStudy (anonymous):

Can someone help me with this question?!?!?!

OpenStudy (anonymous):

OpenStudy (anonymous):

@kewlgeek555 @texaschic101

OpenStudy (anonymous):

since one factor is more or less given. synthetically divide and find the quadratic term and use the quadratic formula to solve for the imaginary roots

OpenStudy (anonymous):

could you solve it and just show me your steps im no good at this!

OpenStudy (jdoe0001):

the choices make an assumption that one of the roots is either (x+2) or (x-2) test both to see which one is it, then divide the polynomial by that root you'd end up with a quadratic as the quotient, with no remainder so, once with a quadratic, it should be just a matter of factoring or using the quadratic formula

OpenStudy (anonymous):

......

OpenStudy (jdoe0001):

\(\large x^3+4x^2+7x+6 \div \begin{array}{llll} (x+2)\\ \quad or\\ (x-2) \end{array}\) whichever gives a remainder of 0, is the root

OpenStudy (jdoe0001):

\(\bf x^3+4x^2+7x+6 \div (x\pm 2)\implies \square x^2+\square x+\square \qquad thus\\ \quad \\ (x\pm 2)(\square x^2+\square x+\square)\)

OpenStudy (anonymous):

whats supposed to go in the blanks?

OpenStudy (jdoe0001):

what you'd get from the long division of the polynomial

OpenStudy (mertsj):

Do you know synthetic division?

OpenStudy (anonymous):

i dont think i did it right

OpenStudy (mertsj):

Do you know synthetic division?

OpenStudy (anonymous):

i got x+4+ (11x+22)/(x^2 -4)

OpenStudy (anonymous):

from the long divion

OpenStudy (mertsj):

|dw:1391820126420:dw|

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