document.write( "Question 876445: The double of Mr. beery's age squared is equal to his age times 67 plus 105. How old is Mr. Beery?
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Algebra.Com's Answer #528804 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Let a = his age \n" ); document.write( "write an equation for exactly what it says \n" ); document.write( ": \n" ); document.write( "The double of Mr. beery's age squared is equal to his age times 67 plus 105. \n" ); document.write( "2a^2 = 67a + 105 \n" ); document.write( "A quadratic equation \n" ); document.write( "2a^2 - 67a - 105 = 0 \n" ); document.write( "You can use the quadratic formula but this will factor to \n" ); document.write( "(2a+3)(a-35) = 0 \n" ); document.write( "The positive solution \n" ); document.write( "a = 35 is Mr B's age \n" ); document.write( " \n" ); document.write( " |