$\"\"$

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Solve the in equality $\"\"$ .

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Rewrite the inequality as $\"\"$ .

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Related equation is $\"\"$ .

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Since it is a quadratic equation, use quadratic formula to solve the related equation.

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Compare the above equation with standard form of quadratic equation with $\"\"$ .

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$\"\"$ .

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Quadratic formula $\"\"$ .

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$\"\"$

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$\"\"$ and $\"\"$ .

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$\"\"$ and $\"\"$ .

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Now write the inequality as $\"\"$ .

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There are two ways this product could be greater than or equals to zero.Two factors must be negative or zero and Two factors must be positive or zero.

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Case 1 :

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$ .

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Thus, the solution set is $\"\"$ .

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Case 2 :

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$ .

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Thus, the solution set is $\"\"$ .

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

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