document.write( "Question 1158341: When ax³ + bx² + cx - 4 is divided by (x+2), the remainder is double that obtained when the expression is divided by (x+1). Show that c can have any value and find b in terms of a. \n" ); document.write( "
Algebra.Com's Answer #781267 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( ", the remainder is double that obtained when the expression is divided by (x+1). Show that c can have any value and find b in terms of a.\r
\n" ); document.write( "\n" ); document.write( "\"ax%5E3+%2B+bx%5E2+%2B+cx+-+4\" is divided by \"%28x%2B2%29\":\r
\n" ); document.write( "\n" ); document.write( "..........(\"ax%5E2%2B%28b-+2a%29x%2B%28c-2b%2B4a%29\"
\n" ); document.write( "\"%28x%2B2%29\"|\"ax%5E3+%2B+bx%5E2+%2B+cx+-+4\"
\n" ); document.write( "..........\"ax%5E3+%2B+2ax%5E2\" ............subtract
\n" ); document.write( "..................\"%28b-+2a%29x%5E2%2B+cx\"
\n" ); document.write( ".................\"%28b-+2a%29x%5E2%2B2%28b-+2a%29x\"..........subtract
\n" ); document.write( "............................\"%28c-%282b-+4a%29%29x\"
\n" ); document.write( "............................\"%28c-2b%2B4a%29x-+4\"
\n" ); document.write( "............................\"%28c-2b%2B4a%29x%2B2%28c-2b%2B4a%29\".........subtract
\n" ); document.write( ".........................................\"-4-2%28c-2b%2B4a%29\"
\n" ); document.write( ".........................................\"-4-2c%2B4b-8a\"->reminder\r
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\n" ); document.write( "\n" ); document.write( "\"ax%5E3+%2B+bx%5E2+%2B+cx+-+4\" is divided by \"%28x%2B2%29\":\r
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "..........(\"ax%5E2%2B%28b-+a%29x%2B%28c-b%2Ba%29\"
\n" ); document.write( "\"%28x%2B1%29\"|\"ax%5E3+%2B+bx%5E2+%2B+cx+-+4\"
\n" ); document.write( "............\"ax%5E3+%2B+ax%5E2\" ............subtract
\n" ); document.write( "..................\"%28b-+a%29x%5E2%2B+cx\"
\n" ); document.write( ".................\"%28b-+a%29x%5E2%2B%28b-+a%29x\"..........subtract
\n" ); document.write( "............................\"%28c-%28b-+a%29%29x\"
\n" ); document.write( "............................\"%28c-b%2Ba%29x-+4\"
\n" ); document.write( "............................\"%28c-b%2Ba%29x%2B%28c-b%2Ba%29\".........subtract
\n" ); document.write( ".........................................\"-4-%28c-b%2Ba%29\"
\n" ); document.write( ".........................................\"-4-c%2Bb-a\"->reminder\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the remainder \"-4-2c%2B4b-8a\" is double more than remainder \"-4-c%2Bb-a\":\r
\n" ); document.write( "\n" ); document.write( "\"-4-2c%2B4b-8a=2%28-4-c%2Bb-a%29\"\r
\n" ); document.write( "\n" ); document.write( "\"-4-2c%2B4b-8a=-8-2c%2B2b-2a\"........simplify\r
\n" ); document.write( "\n" ); document.write( "\"-4-cross%282c%29%2B4b-8a=-8-cross%282c%29%2B2b-2a\"-> so,this proves that \"+c\" can have \"any+\"value\r
\n" ); document.write( "\n" ); document.write( "\"-4%2B4b-8a=-8%2B2b-2a\".........solve for \"b\"\r
\n" ); document.write( "\n" ); document.write( "\"4b-2b=8a-8%2B4-2a\"\r
\n" ); document.write( "\n" ); document.write( "\"2b=6a-4\"\r
\n" ); document.write( "\n" ); document.write( "\"b=3a-2\"\r
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