(Section 1.1: Functions)1.1.16 Example 18 (Evaluating a Function at a Non-numeric Input)Let fx()=3x2±2x+5. Evaluate +h. § SolutionWARNING 17:+his often notequivalent to +hor +fh. Instead, think: Substitution.To evaluate +h, we take 3x2±2x+5, and we replace alloccurrences of xwith x+h. This may seem awkward, because we are replacing xwith another expression containing x. =3x2±2x+5²+h=3x+h2±2x+h+5=3x2+2xh+h2±2x±2h+5WARNING 18:Be careful when
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