document.write( "Question 1098870: An orchard has 864 orange trees. The number of rows exceeds the number of trees per row by 5 How many trees are there in each row
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Algebra.Com's Answer #713253 by ikleyn(52832) $\"\"$ $\"About$

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document.write( "Solve the quadratic equation \r\n" );
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document.write( "t*(t+5) = 864,\r\n" );
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document.write( "where t is the number of trees in each row.\r\n" );
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document.write( "Find (MENTALLY) two factors of the number 864 that multiply up to 864 and differ by 5 units:\r\n" );
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document.write( "864 = 2*432 = 4*216 = 8*108 = 16*54 = 32*27 . . .    Oops !  You just found them:\r\n" );
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document.write( "Answer.  The number of trees in each row is 27.\r\n" );
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document.write( "Check.  27*(27+5) = 27*32 = 864.\r\n" );
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