Answer:
Step-by-step explanation:
I find it hard to believe that you were asked to find the solution to a cubic by any other method than graphing it, which I have given below. Not only that, the numbers are very awkward.
The best you could do I think is equate the two equations after you have looked at the graph.
The x value must satisfy
0.5(x - 4) = 2x^3 - 2x - 3
0.5x - 2 = 2x^3 - 2x - 3
2x^3 + 0.5x - 2x - 3 +2 = 0
3x^3 - 1.5x - 1 = 0
from which you can get y
My calculator gives the solution as
x = 0.5
y = - 1.75
I have corrected the mistake I made doing this. The answer is now correct. The graph shows the original two equations which agrees with the combined equation given above.
