Question
Explain the error in the following solution.$$\begin{array}{l}{\text { If } f(x)=x^{2}+7 x+1, \text { find } f(10)} \\{\qquad \begin{aligned}\widehat{f}(10) &=10^{2}+7 x+1 \\&=100+7 x+1 \\&=101+7 x\end{aligned}}\end{array}$$
Step 1
This means we need to substitute \(x = 10\) into the function. Show more…
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