Which of the following is a solution of 4x2 = - 9x - 4?

Question

pooja195 · Answer

Do the directions specify what we have to solve by? 
Quadratic formula or Factoring?

pooja195 · Answer

Step one:
We need to get the equation into 
$$\huge~\rm~ax^2+bx+c=0 $$
form. 
What do we do to get the equation  into this form?

anonymous · Answer

Quadratic formula

anonymous · Answer

would i minus the 4x^2 on both sides?

pooja195 · Answer

yes! :)

anonymous · Answer

ok now what ?

pooja195 · Answer

$$\huge~\rm-4x^2- 9x - 4=0$$

pooja195 · Answer

list your 
A
B
C values now :)

anonymous · Answer

a.9 plus or minus the square root of 17 divided by 8.
b.negative 9 plus or minus the square root of 145 divided by 8.
c.9 plus or minus the square root of 145 divided by 8.
d.negative 9 plus or minus the square root of 17 divided by 8

pooja195 · Answer

abc values...

anonymous · Answer

i dont understand:/

pooja195 · Answer

ax^2+bx+c=0
-4x^2-9x-4=0
name the abc values now

anonymous · Answer

a=-4
b=-9
c=-4? like that

pooja195 · Answer

Yes :) 
$$\huge~\rm~~x=\frac{ -(-9)~\pm \sqrt{(-9)^2-4(-4)(-4)} }{ 2(-4) } $$

pooja195 · Answer

Solve 
$$\huge~\rm~~x=\frac{ 9~\pm \sqrt{(-9)^2-4(-4)(-4)} }{ 2(-4) } $$

anonymous · Answer

\[\frac{ 81-64? }/-8

anonymous · Answer

is this right?

pooja195 · Answer

Not quite look at this: http://prntscr.com/7mvafb

anonymous · Answer

that makes a lot more since lol thank you so much. i got tones more but ill use your method lol

pooja195 · Answer

:) try this: http://www.mathwarehouse.com/quadratic/quadratic-formula-calculator.php