Question 331057
3 to the 2nd power -4x3+4/ 9 to the 2nd power - 4 
the workbook says the answer is 1/5 
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Is it
{{{((3^2 -4)*3 +4)/(9^2 - 4)}}} ?
= (5*3 + 4)/(81 - 4)
= 19/77
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Maybe that's not it.  Use some parentheses.