× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
This topic contains 1 attachment.
Home Q & A Board Science-Related Homework Help Mathematics Calculus
New Topic  
bio_man bio_man
wrote...
solved
Administrator
Educator
Posts: 33241
Rep: 3442 15
4 years ago
Quote
Why -3(xdeltax)^2+1  becomes - 3(xdeltax)^2-3?  . Did you multiply  the front  -3 right? Then why it  doesnt dissapear?

Answer:

\(-3\left[\left(x+\Delta x\right)^2+1\right]\)

You must expand the expression by multiplying the outside factor of \(-3\) into the terms found in the brackets:

\(-3\left(x+\Delta x\right)^2-3\)
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
Read 170 times
1 Reply

Related Topics

Replies
wrote...
#1
4 years ago
thanks
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1350 People Browsing
 129 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 148
  
 326
  
 90
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 352
Previous poll results: Which is the best fuel for late night cramming?