document.write( "Question 48002: solve the equation \r
\n" ); document.write( "\n" ); document.write( "(4x+3.2)(9x-24.3)=0
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Algebra.Com's Answer #31769 by longjonsilver(2297)\"\" \"About 
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you have (4x+3.2)(9x-24.3)=0 which is 2 things multiplied together equalling zero. So \"two numbers multiply to give zero\". What we INSTANTLY know in this situation is that one of the 2 numbers must be zero, since:\r
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\n" ); document.write( "\n" ); document.write( "2x3 is 6, not zero
\n" ); document.write( "30x4 is 120, not zero
\n" ); document.write( "but
\n" ); document.write( "0x35 is zero
\n" ); document.write( "28.1112x0 is zero
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\n" ); document.write( "\n" ); document.write( "So, either (4x+3.2)=0 or (9x-24.3)=0
\n" ); document.write( "so, 4x = -3.2 or 9x = 24.3
\n" ); document.write( "so x = (-3.2)/4 or x = (24.3)/9
\n" ); document.write( "x = -0.8 or x = 2.7\r
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