The easy way to determine the lcd of two rational expressions and use it to find the sum

(-2/(x+1)) + (9/(x-8))

[lostchild]

You’re 10x more helpful than my actual algebra 2 teacher. This is amazing.

[pedrocarvalho]

8 years later and you still make a significant contribution to people’s lives, thank you sir.

[mathgenius]

I understand u way better than my teacher
Love from South Africa 🇿🇦 ❤

[rethinkyourdrink]

Thanks soo much, from the Philippines

[SeanyKrabs]

Been doing this since Alg 1, and it never gets easier. LCD and LCM make no sense to me. “Hey, sometimes this works because it works, and sometimes it doesn’t.”

[kjuleesss]

You’re truly a life saver! Thank you so much for explaining this in the most simplest way!☺️

[Heyitsme_]

Teacher: "What would I need to multiply (x-8) by?"
Student: "nine" 💀

I feel for the teacher

P.S it's at (1:13)

[nickh.]

Here i am struggling in Calc 1 because i forgot how to do this lol. Thank you very much.

[sizzygoody]

U helped a lot my teacher didn't explain it clearly👩‍💻

[angelfaithcabuya-on]

Thank u so much, sir! this is very helpful <33

[valerieprice]

Can you include videos without variables for "Exploration in Mathematics"? I'm not finding any examples. Leaving detonator in prime factored form.

[bqxxwvu]

Why does my instructor simply explain like this man

[vorwsji]

Why did you multiply ' (x-8)-2' subtraction sign is in between (x-8) and -2 ..🧐