document.write( "Question 550666: evaluate 8x^2+4x, for x=4 \n" ); document.write( "
Algebra.Com's Answer #358975 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
8x^2+4x\r
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\n" ); document.write( "\n" ); document.write( "8(4)^2+4(4)\r
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\n" ); document.write( "\n" ); document.write( "8(16)+4(4)\r
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\n" ); document.write( "\n" ); document.write( "128+16\r
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\n" ); document.write( "\n" ); document.write( "So 8x^2+4x = 144 when x = 4
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