Express 3x2−15x+43x^2 - 15x + 43x2−15x+4 in the form a(x+b)2+ca(x + b)^2 + ca(x+b)2+c
State the coordinates of the minimum point of the curve y=3x2−15x+4y = 3x^2 - 15x + 4y=3x2−15x+4
State the equation of the normal to the curve y=3x2−15x+4y = 3x^2 - 15x + 4y=3x2−15x+4 at its minimum point.