document.write( "Question 83697: Solve each equation. Round your answers to the nearest tenth when necessary.
\n" ); document.write( "x^3 - 5x^2 +4x = 0 \n" ); document.write( "
Algebra.Com's Answer #60183 by funmath(2933)\"\" \"About 
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\n" ); document.write( "Solve each equation. Round your answers to the nearest tenth when necessary.
\n" ); document.write( "x^3 - 5x^2 +4x = 0
\n" ); document.write( "x(x^2-5x+4)=0
\n" ); document.write( "x(x-4)(x-1)=0
\n" ); document.write( "x=0 or x-4=0 or x-1=0
\n" ); document.write( "x=0 or x-4+4=0+4 or x-1+1=0+1
\n" ); document.write( "x=0 or x=4 or x=1
\n" ); document.write( ":
\n" ); document.write( "Proof:
\n" ); document.write( "If x=0
\n" ); document.write( "(0)^3-5(0)^2+4(0)=0
\n" ); document.write( "0-5(0)+0=0
\n" ); document.write( "0=0
\n" ); document.write( "If x=4
\n" ); document.write( "(4)^3-5(4)^2+4(4)=0
\n" ); document.write( "64-5(16)+16=0
\n" ); document.write( "64-80+16=0
\n" ); document.write( "0=0
\n" ); document.write( "If x=1
\n" ); document.write( "(1)^3-5(1)^2+4(1)=0
\n" ); document.write( "1-5+4=0
\n" ); document.write( "0=0
\n" ); document.write( "We're right!!!
\n" ); document.write( "Happy Calculating!!!! \n" ); document.write( "
\n" );