Show that E (0 - 9) - V(@) + B(0) Both sides of this equation are equivalent ways to calculate the mean square error (MSE). You must start with the left-hand side of the equation and you may not use the hint the book gives for this in the exercises. The only hint I will give you is you should solve B(@) = E(@) -9 for @ and replace the O in the left hand side of the formula prior to squaring