anonymous
  • anonymous
How do you solve the inequality x^2(x-3)(x+1)/(x-5)(x+7) > or = to 0.... using a number line.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
\(\dfrac{x^2(x-3)(x+1)}{(x-5)(x+7)}\geq0\) One step would be to figure out which values for x make this inequality undefined.
anonymous
  • anonymous
sorry there is a network error but the first thing to do, you need to cross multiply
anonymous
  • anonymous
cross multiply? I plugged points in on a number line (-7, -1, 0, 3 and 5) I just need to figure out which sections I need to shade in

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
I will admit that I'm not sure how to solve this problem yet, but I don't see how cross multiplication will work.
anonymous
  • anonymous
are you still there buddy, it seems everthing is okay now
anonymous
  • anonymous
The original poster closed the question, but I am still curious about the answer....
anonymous
  • anonymous
do you now how to get those values that poster got
anonymous
  • anonymous
Yes, set each factor equal to 0.
anonymous
  • anonymous
5 and -7 make the inequality undefined, so those should be open circles.
anonymous
  • anonymous
so after that, you subtitude you values into the equation you got after cross multiplication
anonymous
  • anonymous
I still don't understand how cross multiplication works in this case.
anonymous
  • anonymous
|dw:1378598724942:dw|, your number line will be like this
anonymous
  • anonymous
sorry G, what do you mean you still dont understand how cross multiplication comes in this case
anonymous
  • anonymous
hey K, are you there
anonymous
  • anonymous
Cross multiplication usually means multiplying across the equal sign. In this case, that would end up with 0=0.
anonymous
  • anonymous
no, if you cross multiply\[x^2(x-3)(x+1)=0\]
anonymous
  • anonymous
Right, because the fraction would be \(\dfrac{0}{1}\) and not \(\dfrac{0}{0}\). Got it now. Thanks.
anonymous
  • anonymous
good, i think now we can carry on
anonymous
  • anonymous
K are you there

Looking for something else?

Not the answer you are looking for? Search for more explanations.