Hello dearies! Here is my problem...
Solve for x: 9x^2-12x=-8
I got x=sqrt(8+12x)/3
Can you simplify this any more? The math brain is a little rusty haha

Question

Hello dearies! Here is my problem...
Solve for x: 9x^2-12x=-8
I got x=sqrt(8+12x)/3
Can you simplify this any more?  The math brain is a little rusty haha

hartnn · Answer

do u know how to solve quadratic equations??

australopithecus · Answer

factor or use quadratic equation

australopithecus · Answer

never mind this cannot be factored nicely

anonymous · Answer

yes yes.  it should be imaginary?  and sorry i typed it wrong the 8 should be negative in my answer

australopithecus · Answer

Video on how to use the quadratic formula: https://www.youtube.com/watch?v=EeVqtpuMFOU

anonymous · Answer

write it in standard form
9x^2-12x+8=0
compare with ax^2+bx+c=0
here 
a=9
b=-12
c=8
now use Quadratic equation
$$\Large x=\frac {-b \pm \sqrt{(b^2-4(a)(c))}}{2(2)}$$

australopithecus · Answer

yes there are no real solutions to this problem

anonymous · Answer

it is 2(a) in the denominator

anonymous · Answer

you will get an imaginary number here

anonymous · Answer

oh i am silly.  i had convinced myself that you can't use quadratic formula to find imaginary answers...thank you loves!

anonymous · Answer

|dw:1345438041235:dw|

anonymous · Answer

correct?

anonymous · Answer

yup just reduce