<PRE><B>Question 385695</B>
 -3x over 8 times 16x over 9

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[-3x/8]*[16x/9]
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Cancel any factor that is common to a numerator and a denominator.
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= [-x/1]*[2x/3]
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= -(2/3)x^2
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Cheers,
Stan H.
</PRE>