Chapter 9: Problem 24
Simplify as much as possible. $$ \frac{A^{4+p}-A^{5 p}}{A^{2+p}-A^{3 p}} $$
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Chapter 9: Problem 24
Simplify as much as possible. $$ \frac{A^{4+p}-A^{5 p}}{A^{2+p}-A^{3 p}} $$
These are the key concepts you need to understand to accurately answer the question.
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Factor \(b^{x}\) out of each of the following expressions. (a) \(3 b^{x}-b^{2 x}\) (b) \((3 b)^{x}-b^{x+2}\) (c) \(b^{3 x / 2}-b^{2 x-1}\)
Factor \(b^{x}\) out of the following expressions. Check your answer by multiplying out. $$ b^{3 x}-(2 b)^{-1+2 x} $$
Simplify as much as possible: (a) \(\frac{x^{2 y}+x^{y+2}}{x^{y}}\) (b) \(\frac{\frac{\sqrt{x}}{x^{-1 / 2} y}-1}{y-\frac{x^{2}}{y}}\) (c) \(\frac{A^{B+4}-A^{3 B}}{A^{B}\left(A^{2}-A^{B}\right)}\) (d) \(\frac{y^{3 w}-y^{w+4}}{y^{w}\left(y^{w}+y^{2}\right)}\)
15\. Consider the function $$ f(x)=\frac{x^{2}}{e^{x}} $$ (a) Compute \(f^{\prime}(x)\). (The Quotient Rule is unnecessary.) (b) For what values of \(x\) is \(f^{\prime}(x)\) positive? For what values of \(x\) is \(f^{\prime}(x)\) negative? (c) For what values of \(x\) is \(f(x)\) increasing? For which is it decreasing? Give exact answers. (d) What is the smallest value ever taken on by \(f(x)\) ? Explain your reasoning.
For Problems 1 through 9, simplify the following expressions. $$ \frac{(a b)^{-x}}{a^{-x}+b^{-y}} $$
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