Simplifying Radicals
Simplify √125
5√5
Simplify √512
16√2
Simplify √147
7√3
Simplify -3 √7 ⋅ 6√7
-126
Simplify -3√24
-6√6
Simplify √567
9√7
If P is power (in watts) and R is resistance (in ohms), then the voltage V necessary to run the circuit is V= √PR Find the voltage necessary to run a 40–watt amplifier with a resistance of 150 ohms. Hint: plug in the numbers and simplify!
20√15