Rational Expressions Multiplying and Dividing

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Learn how to multiply and divide rational expressions in this algebra video tutorial by Mario's Math Tutoring. We go through a number of examples involving various factoring techniques and discuss how to reduce and simplify the resulting rational expressions. We also discuss the "keep it change it flip it" technique for dividing.
0:20 What is a Rational Expression
0:29 How to Multiply Rational Expressions
0:44 First Step When Multiplying and Dividing
1:55 Way to Remember How to Divide Rational Expressions
2:55 How to Simplify
3:28 Common Mistake Students Often Make and How to Avoid
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Опубликовано:

4 окт 2024

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Комментарии : 23

@stinkycheesecutter 6 лет назад

just wanted to say that you probably saved me from taking transitional math in college! now ill just take intermediate algebra but only because i didnt give myself enough time before the placement exam! thank you, Mario!

@MariosMathTutoring 6 лет назад

Your welcome Brian! Glad my videos are helping you! Thanks for letting me know. Keep up the great work with your math!

@utmocanimations4136 3 года назад

Amazing! It was so easy, I thought it was so hard

@crazygirledits9443 4 года назад

for the second problem (2x+3) (x-2).for the inverted denominator

@-Brandon 6 лет назад

Mario the plug :))) You're the best man keep it up

@MariosMathTutoring 6 лет назад

Glad you are liking my videos and channel!

@Aksafos 2 года назад

Thank you Mario this vedio was really helpful.

@jadebuban9222 6 лет назад

I FOUND A TUTOR THANKS TO YOU! OHMYGASH A VERY BIG HELP. U TEACH WELL!

@MariosMathTutoring 6 лет назад

Glad to hear it!

@qualiqueancrum9135 6 лет назад

Thank you for the video. Its really helps

@MariosMathTutoring 6 лет назад

Your welcome! Glad my video helped you!

@23Geo16 4 месяца назад

You are so... I have no word ❤️❤️❤️

@soviet_onion_4208 3 года назад

mario you are the man

@ethanolol3895 6 лет назад

Thank you Mario!!!!

@MariosMathTutoring 6 лет назад

Your welcome!

@samabrams2516 4 года назад

why wouldn't you factor the (x^2+2x+4) further from the last example?

@MariosMathTutoring 4 года назад

It’s because that is not factorable further.

@joeyallencuevas9791 5 лет назад

How came that you cancel out the common term if its a monomial in binomial..?

@MariosMathTutoring 5 лет назад

Joey, I’m not sure I understand your question. You want to factor the numerators and denominators as much as possible first then see if you can cancel factors in the numerator and denominator. For example say the numerator was (x-3) and the denominator was (x+4) you would not be able to cancel just the x....that is a common mistake that students sometimes make...I’ll see if I can find any other videos I have that can help you....just a minute

@saberdiamond996 Год назад

Hi, I had a question and this term is getting me confused. So right not we are learning this but at the end of the answer we have x ≠ (a number) for our answer...but the thing is our teacher tells us that there is sometime you can put it and sometimes you dont need to

@MariosMathTutoring Год назад

Set the denominators = to zero. Those are the excluded values …because you don’t want the denominator equal to zero because it would be undefined. Hope that helps you.

@saberdiamond996 Год назад

@@MariosMathTutoring thank you, i think that helps…but there is this other part where so my teacher said that sometimes you don’t have to include x not equal the number if it’s already visible in the final answer