Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

8x^3-10x^2-25x/4x^2+5x

OpenStudy (anonymous):

A. 3x2 + 2x B. 4x - 10 C. 2x - 5 D. 3x + 2

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (ivancsc1996):

\[\frac{ 8x ^{3}-10x^{2}-25x }{ 4x ^{2}+5x }\]First we can cancel an x from each term:\[\frac{ 8x ^{2}-10x-25 }{ 4x+5 }\]

OpenStudy (ivancsc1996):

Then I think you have to evaluate which each solution the inequality to see which one gives you 0=0

jimthompson5910 (jim_thompson5910):

from there you factor 8x^2-10x-25 8x^2-10x-25 8x^2+10x-20x-25 (8x^2+10x)+(-20x-25) I'll let you finish up the factorization

OpenStudy (ivancsc1996):

How did you do that factorization?

OpenStudy (ivancsc1996):

Ohhhh no I just saw it :)

OpenStudy (anonymous):

would it be B?

jimthompson5910 (jim_thompson5910):

what do you get when you finish up the factorization

OpenStudy (ivancsc1996):

Let me help you, you need to find the common factor of the tarms that jim put in parenthesis to take them out of the equation.

OpenStudy (anonymous):

i got (-5+-4x)(5+-2x)

OpenStudy (anonymous):

so its c

jimthompson5910 (jim_thompson5910):

you somehow introduced a negative when there isn't supposed to be one it should be (4x+5)(2x-5)

jimthompson5910 (jim_thompson5910):

yeah it's C

OpenStudy (anonymous):

yeah. thanks

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!