Question

Use the x-intercept method to find all real solutions of the equation. x^3-9x^2+23x-15=0

Answer 1

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Answer 2

For this case we have the following function:
x ^ 3-9x ^ 2 + 23x-15 = 0
Rewriting we have:
(x-5) * (x-3) * (x-1) = 0
Therefore, the solutions are given by:
Solution 1:
x-5 = 0
x = 5
Solution 2:
x-3 = 0
x = 3
Solution 3:
x-1 = 0
x = 1
Answer:
x = 5
x = 3
x = 1