document.write( "Question 367353: Multiply:
\n" ); document.write( "(x^2+x+4)(x-4)\r
\n" ); document.write( "\n" ); document.write( "Add:
\n" ); document.write( "(8x^2-xy+y^2)+(-x^2-4xy+6y^2)\r
\n" ); document.write( "\n" ); document.write( "Factor By Grouping:
\n" ); document.write( "4x^3-28x^2-3x+21\r
\n" ); document.write( "\n" ); document.write( "Factor:
\n" ); document.write( "3c^7-192c^4\r
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\n" ); document.write( "\n" ); document.write( "I have been working on these problems for quite sometime.. Please help, if possible, show all work so I can understand better! Thank you!
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Algebra.Com's Answer #261852 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
Multiply:
\n" ); document.write( "(x^2+x+4)
\n" ); document.write( "(x-4)
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\n" ); document.write( "X^3+X^2+4X-4X^2-4X-16
\n" ); document.write( "X^3-3X^2-16 ans.\r
\n" ); document.write( "\n" ); document.write( "Add:
\n" ); document.write( "(8x^2-xy+y^2)
\n" ); document.write( "(-x^2-4xy+6y^2)
\n" ); document.write( "--------------------
\n" ); document.write( "7x^2-5xy+7y^2 ans.\r
\n" ); document.write( "\n" ); document.write( "Factor By Grouping:
\n" ); document.write( "4x^3-28x^2-3x+21
\n" ); document.write( "4x^2(x-7)-3(x-7)
\n" ); document.write( "(4x^2-3)(x-7) ans.\r
\n" ); document.write( "\n" ); document.write( "Factor:
\n" ); document.write( "3c^7-192c^4
\n" ); document.write( "3c^4(c^3-64)
\n" ); document.write( "3c^4(c-4)(c^2+4c+16) ans.\r
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