document.write( "Question 1152830: If dy/dx is 6x^2+4x-5, and y=10 when x=2, find the value of y when x=3. please with full working \n" ); document.write( "
Algebra.Com's Answer #774921 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "If \"dy%2Fdx=6x%5E2%2B4x-5\", then \"f%28x%29\" is\r
\n" ); document.write( "\n" ); document.write( " \"y=2x%5E3%2B2x%5E2-5x\"\r
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\n" ); document.write( "\n" ); document.write( "and \"y=10\" when \"x=2\", \r
\n" ); document.write( "\n" ); document.write( "let'c double check that: \r
\n" ); document.write( "\n" ); document.write( "\"y=2%2A2%5E3%2B2%2A2%5E2-5%2A2\"
\n" ); document.write( "\"y=2%2A8%2B2%2A4-10\"
\n" ); document.write( "\"y=16%2B8-10\"
\n" ); document.write( "\"y=24-10\"
\n" ); document.write( "\"y=14\"=> \"y\" is not =\"10\" when \"x=2\",must be: \"y=14\" \r
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\n" ); document.write( "\n" ); document.write( "find the value of \"y\" when \"x=3\". \r
\n" ); document.write( "\n" ); document.write( "\"y=2%2A3%5E3%2B2%2A3%5E2-5%2A3\"\r
\n" ); document.write( "\n" ); document.write( "\"y=2%2A27%2B2%2A9-15\"\r
\n" ); document.write( "\n" ); document.write( "\"y=54%2B18-15\"\r
\n" ); document.write( "\n" ); document.write( "\"y=57\"\r
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