$\"\"$

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The function is $\"\"$ .

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Find the $\"\"$ -intercepts by equating $\"\"$ to zero .

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$\"\"$

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$\"\"$ or $\"\"$

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$\"\"$ or $\"\"$

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The two $\"\"$ - intercepts are $\"\"$ and $\"\"$ .

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$\"\"$

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So $\"\"$ .

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From Rolles theorem, there exist at least one $\"\"$ in the interval $\"\"$ such that $\"\"$ .

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The function is $\"\"$ .

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Multiply each side by $\"\"$ .

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$\"\"$

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Differentiate on each side with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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Equate it to zero.

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$\"\"$

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$\"\"$

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Hence there exist $\"\"$ in the interval $\"\"$ .

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Therefore $\"\"$

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$\"\"$

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Two $\"\"$ - intercepts are $\"\"$ and $\"\"$ .

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$\"\"$ .