i use the goal seek tool in ms excel to solve the


(i) Use the GOAL SEEK tool in MS EXCEL to solve the following equation and determine the TWO roots of this equation between 0 < x < 9.

X4-8x3-x2-14x+21=0

(ii). Use the SOLVER tool in MS EXCEL to find the maximum and minimum value of the function in the above range (0 < x < 9).

(iii). Plot the graph of Y = X4-8x3-x2-14x+21for the range 0 < x < 9 in the SAME WORKSHEET and CLEARLY SHOW that the values you obtained as roots for part (i) and values for part (ii) are correct.

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Mechanical Engineering: i use the goal seek tool in ms excel to solve the
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