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For the function f defined by f(x)=3x2−2x+5 find f(−x),−f(x) , and −f(−x).
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For the function f defined by f(x)=3x2−2x+5 find f(−x),−f(x) , and −f(−x).

User Chris Fei
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1 Answer

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Explanation:


f(x)=3x^2-2x+5\\\\f(-x)=\text{substitute (-x) instead x in f(x)}\\\\f(-x)=3(-x)^2-2(-x)+5=3x^2+2x+5\\\\-f(x)=-(3x^2-2x+5)=-3x^2-(-2x)-5=-3x^2+2x-5\\\\-f(-x)=-(3x^2+2x+5)=-3x^2-2x-5

User Noobzie
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