× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
t
7
m
6
k
6
F
5
j
5
t
5
j
5
G
5
f
5
a
5
d
5
c
5
Home Q & A Board Science-Related Homework Help Mathematics
New Topic  
dave2011 dave2011
wrote...
solved
Posts: 71
Rep: 0 0
11 years ago
How do you solve this by factoring?
Read 486 times
4 Replies

Related Topics

Replies
wrote...
#1
11 years ago
8x^2 + 9x = 3x^2 - 18x + 63
5x^2 + 27x - 63 = 0
x = 44 or -179
wrote...
#2
11 years ago
8x^2+9x=3x^2-17x+63
5x^2+26x-63=0
(x+7)(5x-9)=0
x= -7, 9/5
wrote...
#3
11 years ago
8x^2+9x=3x^2-17x+63     FOIL x(8x+9)

5x^2+26x-63=0               Combine like terms

(5x-9)(x+7)=0                 Factor

(5x-9)=0    (x+7)=0         Zero product property

x=9/5  x= -7                    Solve
wrote...
#4
11 years ago
5x^2+26x-63=0
(5x-9)(x+7)=0
x=9/5 or x=-7
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  841 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 4442
  
 92
  
 309
Your Opinion
Who's your favorite biologist?
Votes: 587
Previous poll results: Which 'study break' activity do you find most distracting?