document.write( "Question 148914: I need help on these two questions\r
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document.write( "1. Solve for x when [5x-7]=14\r
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document.write( "2. Multiply the complex numbers (4+3i)(6+i) \n" );
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Algebra.Com's Answer #109237 by mangopeeler07(462)![]() ![]() ![]() You can put this solution on YOUR website! 1. 5x-7=14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add 7 to both sides \n" ); document.write( "5x=21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Divide by 5 \n" ); document.write( "x=21/5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "**If this is an absolute value problem, proceed to do this as well**:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5x-7=-14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add 7 to both sides \n" ); document.write( "5x=-7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Divide by 5 \n" ); document.write( "x=-7/5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If absolute value: x=21/5;-7/5 \n" ); document.write( "If not absolute value: x=21/5 \n" ); document.write( "_________________________________________________________________________________ \n" ); document.write( "2. (4+3i)(6+i)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "FOIL \n" ); document.write( "4(6)+4(i)+3i(6)+3i(i)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Simplify \n" ); document.write( "*Note: \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "24+4i+18i+-3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Combine like terms \n" ); document.write( "21+22i \n" ); document.write( " |