document.write( "Question 171050: 2x(-5x-4)=4(-x+1) \n" ); document.write( "

Algebra.Com's Answer #126279 by checkley77(12844) $\"\"$ $\"About$

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2x(-5x-4)=4(-x+1)
\n" ); document.write( "-10x^2-8x=-4x+4
\n" ); document.write( "-10x^2-8x+4x-4=0
\n" ); document.write( "-20x^2-4x-4=0
\n" ); document.write( "20x^2+4x+4=0
\n" ); document.write( "4(5x^2+x+1)=0
\n" ); document.write( "[Equation has complex routes] $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "x=(-1+-sqrt[1^2-4*5*1])/2*5
\n" ); document.write( "x=(-1+-sqrt[1-20])/10
\n" ); document.write( "x=(-1+-sqrt-19)/10
\n" ); document.write( "x=-1/10+-4.359i/10
\n" ); document.write( "x=-.1+-/.4359i ans.
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