document.write( "Question 1121228: In the expression (ax + by)(cx - dy), a, b, c, and d are non-zero constants and ad = bc. If ac = 18 and bd = 50, what is the value of the coefficient of the xy term when the expression is multiplied out and the like terms are collected? \n" ); document.write( "

Algebra.Com's Answer #737030 by ikleyn(52794) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "Why don't you multiply these expressions and collect like terms on your own?\r\n" );
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document.write( "It requires very elementary and basic skills only to do it.\r\n" );
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document.write( "If you do understand the meaning of the terms in this assignment, you must be able to do it on your own.\r\n" );
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document.write( "Ah!  In addition, you should be able to make elementary algebraic transformations ! \r\n" );
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document.write( "So, EITHER you do it on your own OR you are in the wrong class.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Hint. The answer is 0 (zero, ZERO).\r
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\n" ); document.write( "\n" ); document.write( "Be aware ! The solution by @Boreal is WRONG.\r
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