Question 1004206
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{{{-4x^2}}} + {{{3x}}} = {{{-1}}}     -----> 


{{{-4x^2}}} + {{{3x}}} + {{{1}}} = {{{0}}},


Now apply the quadratic formula.  Do you know what is this?

If not,  look into the lessons 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/quadratic/lessons/Introduction-Into-Quadratics.lesson>Introduction into Quadratic Equations</A>&nbsp; and 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/quadratic/lessons/proof-of-quadratic-by-completing-the-square.lesson>PROOF of quadratic formula by completing the square</A> 

in this site.


You will get &nbsp;&nbsp;{{{x[1,2]}}} = {{{(-3 +- sqrt(3^2 - 4*(-4)*1))/(2*(-4))}}} = {{{(-3 +- sqrt(9+16))/(-8)}}} = . . . 


Please complete it yourself.