Rational inequalities | Polynomial and rational functions | Algebra II | Khan Academy

Two ways to solve a rational inequality (or an inequality involving a fractional expression)

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[scottyscott]

I just set them to equal 0. Then slove as you would. Makes it a lot more easier

[danaudia]

1st method felt really simple and straight foward. Thanks!

[ravenboard]

I'm so glad you make these videos. I get so confused with the explanations the math teacher I have gives, but when you explain how to solve them, it just make sense. Thank you so much!

[nashuu]

rational functions and inequalities, my most hated type of function. thanks for the video!

[midgitlad]

Organic chemistry made this look way easier. Ur just making it look harder than it really is

[nasserrahimi]

very useful for me as i am taking math at college. Thank you very much Mr. Khan.

[bienangelo]

It's the fact that math teachers use words that only math teachers use is the reason why math is so much harder than it's supposed to be

[aravindakurati]

wooow the way he explained was very helpful, I couldn't understand so clearly when my class teacher taught me, aim impressed!!!1

[ky-ikcz]

i love you thank you so much! you're my saviour SERIOUSLY

[linniker]

You can just multiply the inequality by (x+2)^2 and solve the resulting quadratic inequality. Much simpler.

[roderickchen]

Omg thx this helps me so much for me exam

[muhammaddar]

your really good and i understand it could you make a part 3 if thats ok? and if u already have THANKS! i will check it out you are a really good taecher.

[JoTwi]

Thanks this video was helpful but could you do one on geometry? I'm finiding that subject a little bit tricky and it would be highly appreciated if you did a video on the basics of geometry

[djijspeakerguy]

what would be the steps to solve the rational inequality 1/(x+1) + 1/(x+2) ≤ 0?

[audreybenton]

GOD BLESS YOU BECAUSE I HAVE A TEST IN PRE CALC TOMORROW AND THIS HELPED THANK

[foxcartel]

THANK YOU! You teach math 1000x better than my teacher

[gogglsh]

My College Algebra professor has us figure out the real zeros and the vertical asymptotes... This way is much easier

[kidamaroo]

My textbook did that first method...and this makes it make sense:-)

[truthseeker]

Can someone tell me the rules for a closed dot and an open dot on the number line when graphing a quadratic inequality? Actually, I mean when you have one closed and one open.

[francisoppong]

What of if it greater or equal to 2 or 1