$\"\"$

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The functions are $\"f$ and $\"g$ .

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To find $\"\"$ :

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$\"f$ (Substitute 4 for x)

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$\"f$ (Multiply: $\"\"$ )

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$\"f$ (Add: $\"minus$ )

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The value of $\"f$ is $\"minus$ . $\"\"$

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To find $\"\"$ :

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$\"g$ (Substitute $\"minus$ for x)

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$\"g$ (Multiply: $\"\"$ )

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$\"g$ (Subtract: $\"minus$ )

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The value of $\"g$ is $\"minus$ . $\"\"$

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To find $\"\"$ :

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$\"Syntax$ (Substitute $\"\"$ )

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$\"\"$ (Product of two different signs is negative) \ \

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$\"f$ (Add: $\"\"$ ) $\"\"$

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The value of $\"f$ is $\"minus$ .