Ask
your own question, for FREE!
Mathematics
35 Online
OpenStudy (anonymous):
how do you find the factor of the polynomial x squared minus x minus 20
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
The factorization scheme that jumped to my mind when i looked at your polynomial was ( x - a )( x + b ) = x^2 - ax + bx - ab Knowing that in your case we would need values for a and b such that b - a = -1 and ab = 20. Since 20 = 4 * 5 and 4 - 5 = -1 we have a solution at ( x - 5 )( x + 4 ) = x^2 - x - 20 as required. Does that help?
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
CecePitbull:
hey guys, im js gonna tell u all now. im taking a break from questioncove, maybe like a week.
15 hours ago
35 Replies
5 Medals
DADDYROXY:
She had a spouse but wanted to feel aroused. Her husband never satisfied her needs, So she was about to commit a forbidden deed.
15 hours ago
3 Replies
0 Medals
kristen000021:
Guess you've figured out That I'm one of a kind, remember when you had your doubt
12 hours ago
16 Replies
4 Medals
theydontknowally:
What can I say? I really tried, yeah, I tried And I would've died by your side Bu
18 hours ago
14 Replies
2 Medals
xXAikoXx:
Yeah, don't play with me, I'm on some other Pear, like Some whole other Wizard, l
1 day ago
1 Reply
0 Medals
AddieroniAndCheese:
AP Chem Practice Helllp please. I have no idea where to start! Replace the reactant specified in each of the following compounds with another element based
1 day ago
13 Replies
0 Medals
Lovedheart:
whats that one song where its like oh they loving the crewww oh loving crew oh th
21 hours ago
3 Replies
0 Medals
kazaktbone:
this is a song i made two month ago. now just sharing a lot of this bc it takes t
2 days ago
17 Replies
0 Medals