document.write( "Question 1084788: fatimah is 5 years older than dollah.if the product of their ages is 234.how old is dollah? \n" ); document.write( "

Algebra.Com's Answer #698859 by Cromlix(4381) $\"\"$ $\"About$

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Hi there,
\n" ); document.write( "Make Dollah's age = x
\n" ); document.write( "Fatimah's age = x + 5
\n" ); document.write( "The product of their ages = 234
\n" ); document.write( "x(x + 5) = 234
\n" ); document.write( "Multiply out
\n" ); document.write( "x^2 + 5x = 234
\n" ); document.write( "Sort into ax^2 + bx + c = 0 form
\n" ); document.write( "x^2 + 5x - 234 = 0
\n" ); document.write( "(x - 13)(x + 18) = 0
\n" ); document.write( "x + 18 = 0
\n" ); document.write( "x = -18 (Disregard as -ve)
\n" ); document.write( "x - 13 = 0
\n" ); document.write( "x = 13
\n" ); document.write( "Dollah is 13 years old
\n" ); document.write( "Fatimah is 18 years old.
\n" ); document.write( "Hope this helps :-) \n" ); document.write( "

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