Question 435606
2x+y=2420 
xy=435600
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y=435600/x
2x+(435600/x)=2420
2x^2+435600=2420x
2x^2-2420x+435600=0
x^2-1210x+217800=0
x=990, y=220 or vice versa (see below)
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Ed
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*[invoke quadratic "x", 1, -1210, 217800]