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Use the properties of rational exponents to simplify (8^4/ 10^4)-1/4 - 8^4 is over 10^4 btw and second part is negative 1 divided by 4? Let y'''- 7 y''+12 y'=0. Find all values of r such that y = e^{rx}? How does the magnetic field react to different types of magnets (bar magnets, horseshoe magnets, donut magnet, etc)? Quantum mechanical theory revealed that electrons' locations depend on what? Which spot or spots represent genes that do not show a difference in gene expression in high CO2 levels vs. normal air. EXPLAIN WHY?