4 years ago

The solution of f(x)=x^3-2x^2- 9x + 18 is

Mathematics

1 answer:

Tom [10]4 years ago

5 0

Answer:

x = -3, 2, 3.

Step-by-step explanation:

f(x )= x^3 - 2x^2 - 9x + 18 We factor this by grouping:

f(x) = x^2(x - 2) - 9(x - 2)

f(x) = (x ^2- 9)(x - 2)

f(x) = (x - 3)(x + 3)(x - 2).

The zeroes of the function are:

x = -3, 2, 3.

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