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Mathematics 14 Online
OpenStudy (anonymous):

What are the final zeros for x^2 + 10x +35 ?

OpenStudy (anonymous):

@FlyinSolo_424

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Im trying to factor it but Im confused because the only factors are 7 and 5? but those added dont equal 10?

OpenStudy (anonymous):

http://www.purplemath.com/modules/quadform.htm

OpenStudy (anonymous):

If it can't be factored easily use the quadratic formula

OpenStudy (anonymous):

i did But i ended up with -10i + 3.16 and -10i - 3.16 which Im guessing is not right and those are definetley not the final zeros

OpenStudy (anonymous):

-10 +/- sqrt -40 all over 2 -5 +/- i sqrt (10) -5 + i sqrt(10) -5 - i sqrt(10)

OpenStudy (anonymous):

Then What?

OpenStudy (anonymous):

Is there only one 'zero' which x=2?

OpenStudy (anonymous):

Thats it. There are no real zeros. Those last 2 lines I wrote are the zeros, but they are both imaginary

OpenStudy (anonymous):

So I would put no real zeros? thank you so much

OpenStudy (anonymous):

I guess so. You could include the imaginary zeros as proof

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