document.write( "Question 295412: (4x^-2)-x^-1-5 put in quadratuc form to find x. \n" ); document.write( "

Algebra.Com's Answer #212890 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
(4x^-2)-x^-1-5 put in quadratic form to find x.
\n" ); document.write( "------
\n" ); document.write( "4(x^-1)^2 - (x^-1) - 5 = 0
\n" ); document.write( "---
\n" ); document.write( "To solve for \"x\" use the quadratic formula:
\n" ); document.write( "x^-1 = [1 +- sqrt(1-4*4*-5)]/8
\n" ); document.write( "---
\n" ); document.write( "x^-1 = [1 +- sqrt(81)]/8
\n" ); document.write( "x^-1 = [1 +- 9]/8
\n" ); document.write( "---
\n" ); document.write( "x^-1 = 10/8 or x = -1
\n" ); document.write( "---
\n" ); document.write( "So x = 4/5 or x = -1
\n" ); document.write( "============================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "============================ \n" ); document.write( "

\n" );