September 2018 2 45 Report
AUXILIO!! Resolver las siguientes ecuaciones de segundo grado:
1) x^2-3x-70=0 2)x^2-x-2=0 20x^2+8-9=0 3)20x^2+8x-9=0 4)x^2-x-2=0 5)x^2-4x-21=0 6)3x^2+2x-16=0 7)21x^2-50x+25=0

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