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Quadratic formula
by mathcheck
Full page
a
b
c
Roots
x = 2 or 1
D = 1
Vertex: (1.5, -0.25)
Show the work
Discriminant
D = -3^2 - 4(1)(2) = 1
Formula
x = (-b +/- sqrt(D)) / 2a
Roots
x = 2 or 1