× 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 169 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
  1135 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 136
  
 195
  
 56