$\"\"$

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The polynomial function is $\"\"$ .

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The leading coefficient is 2 and the constant term is $\"\"$ .

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Possible rational zeros $\"\"$

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$\"\"$ .

\

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By synthetic division, determine that $\"\"$ is a rational zero or not.

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$\"\"$

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The factor form of f(x) is $\"\"$ .

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Find the real zeros by equating $\"\"$ to zero.

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$\"\"$

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Solve $\"\"$ by using quadratic formula.

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Quadratic formula $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Thus, all zeros of the function are $\"\"$ and $\"\"$ .

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$\"\"$

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Graph : \ \

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Draw a coordinate plane.

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Graph the function $\"\"$ .

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Graph of the polynomial function $\"\"$ is : \ \

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$\"graph$

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Observe the above graph :

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The real zero is $\"\"$ .

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$\"\"$

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All zeros of the function are $\"\"$ and $\"\"$ .