I like to always go back to apples and oranges. If they are the same type of fruit, you can combine them. So something with an x can be combined with another x as long as they have the same exponent.
You do not necessarily have to switch the subtraction to adding a -1 times the quantity within parentheses like I did. In number 23, you are subtracting the quantity (9 - 10n), so you can also think of it as first subtracting the 9 and then subtracting the -10n. However, subtracting a negative is the same as adding a positive. So you would be subtracting 9 and adding 10n.
You're the reason I passed 7th grade! Thank you so much ❤️ you explain it way more than teachers do
Thank you! 🙂
Thank your for taking your time to make this video thankfully I found you tryna figure out how do my math luv u
Thanks you! I am glad that I am able to help!
Thank you so much im not good at math and i needed help i will susbcribe
Sometimes it just takes practice. Stick with it and I know you will succeed!!
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Thank you!!! 😃
this is so complicated-
I like to always go back to apples and oranges. If they are the same type of fruit, you can combine them. So something with an x can be combined with another x as long as they have the same exponent.
How do you know when to change the - to a +?? Like in #23? Thank you!
You do not necessarily have to switch the subtraction to adding a -1 times the quantity within parentheses like I did.
In number 23, you are subtracting the quantity (9 - 10n), so you can also think of it as first subtracting the 9 and then subtracting the -10n. However, subtracting a negative is the same as adding a positive. So you would be subtracting 9 and adding 10n.