In a nature conservatory, the ratio of butterflies to total number of flying insects is 36 to 100. There are 450 total flying in
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The general form of an equation is 
. Solving for (5+X)(5-X)=7 by multiplying the factors and subtratcting 7 on both sides gives the equation 
, so
A = 1
B = 0
C = -18
A = 1
B = 0
C = -18