how do you graph y=3x2-6x-5

I have to solve and then graph this problem and it is supposed to be a parabola and I don't know how to do that.
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rite...most x^2 problems=parabola... y=3x^2 -6x-5...3x^2 dominate for big numbers so kerv go up...zoom... step 1...yuze quadratik equashun tu get the zeroes ("roots")... anser=x=2.6329932 & -0.6329932... thats weer the kerv hit the x-axis (it go kross the axis)... then dy/dx=6x-6 & this=0 at x=1... That tell yu slope=0 at x=1 & that will be a min or max. Sins kerv tern up, its a lo
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