Ask
your own question, for FREE!
Mathematics
64 Online
OpenStudy (anonymous):
Solve by using quadratic formula: 5x^2+x=5
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (cruffo):
We would like for this equation to be in the form \[ax^2 + bx + c = 0.\] That was we can see what a, b, and c are. First subtract 5 from both sides, \[5x^2+x-5=0\] Sometimes it helps to see the coefficient of 1, \[5x^2+1x-5=0\] Now a= 5, b = 1, c = -5. Plugging these values into the quadratic formula, \[x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\] \[=\frac{-(1) \pm \sqrt{(1)^2 - 4(1)(-5)}}{2(5)}\] \[=\frac{-1 \pm \sqrt{1 +20}}{10}\] \[=\frac{-1 \pm \sqrt{21}}{10}\] Now the square root of 21 does not simplify, so this is a final answer.
OpenStudy (anonymous):
A= 5
OpenStudy (anonymous):
not 1
OpenStudy (cruffo):
oops
OpenStudy (anonymous):
Thanks
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
0bviouslyNotRakita:
are there any shows/movie requests you guys have seen on Netflix? i've been wanting to watch something for a while.
1 hour ago
17 Replies
0 Medals
rose12345:
A plant can have either tall (T) stems or short (t) stems. Two plants are crossed.
2 hours ago
2 Replies
1 Medal
rose12345:
Why are there two sets of phases during meiosis, but only one during mitosis?
2 hours ago
2 Replies
1 Medal
rose12345:
How do the products of meiosis compare to the original cell? Think about chromosome number.
2 hours ago
1 Reply
2 Medals