Question
Problems $97-106$ are based on material learned earlier in the course. The purpose of these problems is to keep the material fresh in your mind so that you are better prepared for the final exam.$$\text { Solve: } x^{2}-5=(x+3)(x-3)+4$$
Step 1
The equation is $x^{2}-5=(x+3)(x-3)+4$. The right side of the equation is $(x+3)(x-3)+4$. We can expand $(x+3)(x-3)$ to get $x^{2}-3x+3x-9$. Show more…
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