$\"\"$

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The expression is $\"\"$ .

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The expression to be defined is $\"\"$ .

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Let $\"\"$ .

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$\"\"$

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The above expression is in the form of $\"\"$ .

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$\"\"$ .

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$\"\"$ .

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Therefore the factored form of $\"\"$ is $\"\"$ .

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$\"\"$ .

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The real zeros are

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$\"\"$

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$\"\"$

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Therefore $\"\"$ has $\"\"$ real zeros at $\"\"$ and $\"\"$ .

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Create a sign chart using the values $\"\"$ and $\"\"$ .

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$\"\"$

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Note : The solid circle denote that the value are included in the solution set.

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Determine whether $\"\"$ is positive or negative on the test intervals.

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Test intervals are $\"\"$ and $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$

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If $\"\"$ then $\"\"$ .

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The solutions of $\"\"$ are $\"\"$ values for which $\"\"$ is positive or equal to $\"\"$ .

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The solution set is $\"\"$ .

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$\"\"$

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The solution set of $\"\"$ is $\"\"$ .