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Whats the answer to both these problems??

Whats the answer to both these problems??-example-1
User Duselbaer
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1 Answer

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f(3)=|3-5|+2=|-2|+2=2+2=4\\\\ f(-7)=9-2|-7+2|=9-2|-5|=9-2\cdot5=9-10=-1
User Tenderloin
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