Solving Equations: graphically find all real solutions of the equation x^{3}-2x^{2}-x-1=0

snowlovelydayM

snowlovelydayM

Answered question

2021-08-03

Solving Equations Graphically Find all real solutions of the equation, rounded to two decimals.
x32x2x1=0

Answer & Explanation

Jozlyn

Jozlyn

Skilled2021-08-04Added 85 answers

Step 1
Given,
x32x2x1=0
To solve any equation graphically, draw the graph of the given equation and find out the point at which it cuts the x-axis.

Step 2
Hence, from the graph, it is quite clear that the equation has only 1 real solution, i.e. x=2.547. Rounding off to 2 decimals, x=2.55 is the only real solution for x32x2x1=0

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