Chapter 15: Problem 4
Find the roots of the given equations by inspection. $$x(2 x+5)^{2}\left(x^{2}-64\right)=0$$
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Chapter 15: Problem 4
Find the roots of the given equations by inspection. $$x(2 x+5)^{2}\left(x^{2}-64\right)=0$$
These are the key concepts you need to understand to accurately answer the question.
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Perform the indicated divisions by synthetic division. $$\left(2 x^{4}+x^{3}+3 x^{2}-1\right) \div(2 x-1)$$
Solve the given problems. In finding the electric current in a certain circuit, it is necessary to factor the denominator of \(\frac{2 s}{s^{3}+5 s^{2}+4 s+20} \cdot\) Is (a) \((s-2)\) or (b) \((s+5)\) a factor?
Solve the given equations without using a calculator. $$8 n^{4}-34 n^{2}+28 n-6=0$$
Solve the given problems. Use a calculator to solve if necessary. The specific gravity \(s\) of a sphere of radius \(r\) that sinks to a depth \(h\) in water is given by \(s=\frac{3 r h^{2}-h^{3}}{4 r^{3}} .\) Find the depth to which a spherical buoy of radius \(4.0 \mathrm{cm}\) sinks if \(s=0.50\).
Use the factor theorem and synthetic division to determine whether or not the second expression is a factor of the first. $$4 x^{3}-9 x^{2}+2 x-2 ; \quad x-\frac{1}{4}$$
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