document.write( "Question 415136: why is x=-1 the solution of (x-2)*(3x) + (2x-1)*(x+4) = (5x-1)*(x+1)? \n" ); document.write( "

Algebra.Com's Answer #291087 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


\n" );
document.write( "Hi
\n" );
document.write( "(x-2)(3x) + (2x-1) (x+4) = (5x-1) (x+1)?
\n" );
document.write( "Expanding in order to combine Like terms:
\n" );
document.write( "(x-2)(3x) + (2x-1)(x+4) = (5x-1)(x+1)
\n" );
document.write( " 3x^2-6x  + 2x^2+7x-4   = 5x^2+4x-1
\n" );
document.write( "        x -4 = 4x -1      |subtracting 5x^2 from both sides of the Eq
\n" );
document.write( "           -3 = 3x
\n" );
document.write( "           -1 = x
\n" );
document.write( "     \n" );
document.write( "

\n" );