take the absolute value of the coefficient (2)
then the lower bound is the negative of that (-2)
so the range is [-2,2]
Does 2 is included in the square root?
sq.rt (44/2) ? or (sq.rt 44)/2
AB means A X B so you have to do 14 / 9 which is 1.5 or there abouts.
Find the formula for the polynomial
then solve