A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
9x^2+30x+25=64
anonymous
 4 years ago
9x^2+30x+25=64

This Question is Closed

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0A good start is subtracting 64 from both sides.\[ \color{Black}{\Rightarrow 9x^2 + 3x + 25  64 = 0}\] Simplify, and solve the quadratic equation.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the 9x^2 is what I am confused about.

Ganpat
 4 years ago
Best ResponseYou've already chosen the best response.2u can solve it by factorization...

Ganpat
 4 years ago
Best ResponseYou've already chosen the best response.29x2+30x+25=64 9x2+30x+2564 = 0 9x2+30x39 = 0 9x2 9x + 39x 39 = 0 9x(x1) +39 (x1) = 0 (9x +39) (x1) = 0 so, x = 39/9 and x =1....

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0sorry, but I do know the answer involves imaginary numbers.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Actually no... The solutions for x as an answer does not involve imaginary #'s, and it's not 59/3

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ah..so my answer was wrong...sorry

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0With the imaginary line, it's the intersection: dw:1343664593480:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The answer in the back of the book is \[x=(10+2i \sqrt14)/6, (102i \sqrt14)/6 \] I just can't figure out how it got there.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The blue line is (3x+5)^2 The imaginary line is 64i

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0That answer is crazy, this has solvable real number values. Yes you can combine those to get X, but why?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0In this case I'd say either the problem was written down for us incorrectly/incompletedirections, or the book is making it a whole lot harder than it needs be...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0:S Go with what @Ganpat said, unless there's something missing or incorrect here with regards to the question and it's directions as you wrote it here. He's 100% correct.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Plug in those values for x and you'll it works.

Ganpat
 4 years ago
Best ResponseYou've already chosen the best response.2@agentx5 : when did i say that ? :D.. lol
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.