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The property of 12x2-7=6-2x2+2
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The property of 12x2-7=6-2x2+2

User Martin Barth
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12x2-7=6-2x2+2
14x^2-15=0
a=14 , b =0 , c=-15
0^2-4x14x(-15) =
840
User Kdecom
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