diontna29
27.01.2021 •
Mathematics
Simplify and find an expression equivalent to 7(6x+3y+11z)
Solved
Show answers
More tips
- S Style and Beauty How to Get Rid of Under Eye Bruises?...
- F Food and Cooking Is Bacon Good for You?...
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Mathematics
- M Mathematics CAN SOMEONE PLS HELP ME WITH THISSSSSSS...
- M Mathematics k is a polynomial of degree 6. k has a root of multiplicity 2 at w=2,a root of multiplicity 3 at w=9, k(-5)=290751.36, and k(7)=0. find an algebraic equation for k....
- M Mathematics Algebra 2 - I do not understand. I would really appreciate it if you could help:)...
- M Mathematics You invested $19,000 in two accounts paying 6% and 7% annual interest, respectively. If the total interest earned for the year was $1160, how much was invested at each rate? The amount...
- M Mathematics What is the range of this graph?...
- M Mathematics Carpet costs $20 per square yard. How much would it cost to carpet a room measuring 15 feet x 24 feet?...
- M Mathematics PL I DONT HAVE LONG AT ALL. I WILL GIVE BRAINLIEST Consider 2 ¼ divided by 1/4 (a) Write a real-world problem for the division. (b) Find the quotient for the real-world problem in...
- M Mathematics Zeke has one app on his phone when he buys it. He downloads a different number of apps each week. The total number of apps on his phone doubles each week until he has no more storage...
- M Mathematics A Web music store offers two versions of a popular song. The size of the standard version is 2.2 megabytes (MB). The size of the high-quality version is 4.2 MB. Yesterday, there were...
- M Mathematics 1-tan4A/sec^4A=1-2sin^2A...
Ответ:
Step-by-step explanation:
You are now a teacher, and you notice that many of your students are consistently making the dividing-out mistake that appears below. Some of the students even admit to knowing the method was wrong as soon as you point it out.
Create a visual to help your students stop making this common mistake: fraction numerator up diagonal strike x squared plus 3 x − 4 over denominator up diagonal strike x squared − 2 x − 8 end fraction .
Your lesson should do the following:
Explain why the dividing-out method is incorrect. You may want to start with a simpler expression and work your way up to polynomials. (For example, compare fraction numerator 3 left parenthesis 5 right parenthesis over denominator 3 end fraction and fraction numerator 3 plus 5 over denominator 3 end fraction.)
Explain when you can cancel a number that is in both the numerator and denominator and when you cannot cancel out numbers that appear in both the numerator and the denominator.
Share tricks, reminders, memory devices, or other methods to help students catch themselves before making this common mistake.
Post your video or series of images. Post answers to the following questions:
A. Why do you think the mistake shown here is such a common one?
B. Have you ever made this mistake before? What helped you stop making this mistake? What will help you stop making this mistake in the future?
Read and comment on the explanations of other student “teachers.”
A. Comment on ideas that helped you better understand or tricks to help you catch yourself before making the dividing-out mistake.
B. Ask a question to help a student improve his or her explanation or make it more thorough.
Respond to replies to your post.
Be sure to check back regularly to participate in the discussion with your fellow students and teacher.
P.S. I can not see pictures or videos that are posted on here, so if you could write everything out it would be kindly appreciated. :)