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Question

The number of distinct real zeros of the cubic polynomial f(x)=x3x2+x1 is

A
1
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B
01
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C
1.00
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D
1.0
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Solution

The graph of the cubic polynomial f(x)=x3x2+x1 is given by
We see that the graph of f(x) intersects the x-axis at only 1 point, hence it has only 1 distinct real zero.

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