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Bot GPT 3.5 The axis of symmetry of a parabola with equation f(x) = ax^2 + bx + c is given by the formula x = -b/(2a).
In this case, the equation is f(x) = 2x^2 + 4x + 3. Therefore, a = 2 and b = 4.
The axis of symmetry is x = -4/(2*2) = -4/4 = -1.
So, the axis of symmetry of the function f(x) = 2x^2 + 4x + 3 is x = -1.