A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Solve the equation.
square root of 5x+1=6
square root of x2 +7=4
x2+7x+4=0
5x2=15
anonymous
 5 years ago
Solve the equation. square root of 5x+1=6 square root of x2 +7=4 x2+7x+4=0 5x2=15

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01) x=7 2) x=123 3) x=6.37, .63 4) x=9

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how did u get these answers

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Would like to see how the answer to the 4th one was developed. when 9 is substitued in the equation: \[5(9)^{2}=15\] \[(9)^{2}=15/5=3\] \[81\neq3\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yeah, my bad I read it wrong. It's actually 3i.

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Gettin there...... how about \[i \sqrt{3}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[5x ^{2}= 15\] \[X ^{2}= 15\div5=3\] \[X=\sqrt{3}\] \[X= i \sqrt{3}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Sorry about that, I'm new to this and I hadn't yet figured out the equation inserts.

radar
 5 years ago
Best ResponseYou've already chosen the best response.0What method did you use on number 3. Did you use quadratic formula?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes. First I put it in the equation and solved, simplifying tona decimal and rounding to the nearest hundredth. I also checked the zeroes on the graph.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.05x^2 = 15 x^2 = 3 take the square root x = + i sqrt(3)

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Very good. lerachia is there any more questions?

radar
 5 years ago
Best ResponseYou've already chosen the best response.0blexting thanks , so their is two answers for number 4 \[i \sqrt{3}\]\[i \sqrt{3}\]

radar
 5 years ago
Best ResponseYou've already chosen the best response.0lerachia, do you understand how quantum torch got those answers or do you care?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes, when you move an even power (either the numerator or denominator) there are multiple answers. I don't know how to write that with the equation thing yet though, but the rule applies, so thanks on my part as well.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.