menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
What are the solution of the equation x^2- 4x -32 = 0 ?show your work and justify each step.
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
What are the solution of the equation x^2- 4x -32 = 0 ?show your work and justify each step.
asked
Jan 14, 2016
152k
views
5
votes
What are the solution of the equation x^2- 4x -32 = 0 ?show your work and justify each step.
Mathematics
high-school
Nilesh Gajare
asked
by
Nilesh Gajare
9.6k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
0
votes
x^2-4x-32=0
(x+a)(x+b)
x^2-(a+b)x+ab
a+b=4
ab=-32
a=-b+4
(-b+4)b=-32
-b^2+4b=-32
b^2-4b-32=0
b=8,-4
If b=8, a=-4
If b=-4, a= 8
Plug in a and b to (x+a)(x+b)
x= -4, 8
Chris Lear
answered
Jan 19, 2016
by
Chris Lear
8.3k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
No related questions found
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Other Questions
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org