Question
Given the function $f(x)=x^{2}-x,$ evaluate the quantity $f(x+1)$Solution: $f(x+1)=f(x)+f(1)=x^{2}-x+0$$$f(x+1)=x^{2}-x$$This is incorrect. What mistake was made?
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It means that we substitute $x+1$ into the function $f(x)$ wherever we see $x$. Show more…
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