9/21/2016
Words to Know
• Perfect Square – number with integer square
roots
• Square Root – a number that, when multiplied
by itself, equals the given number
• Cube Root – a number that, when multiplied
by itself and then multiplied by itself again,
equals the given number
• Principal Square Root – positive square root;
calculator answer
For each radical, determine the index
and radicand. (I = Index, R = Radicand)
512𝑥 2
24
4
128𝑛8
3
16𝑥𝑦
6
448𝑥 7 𝑦 7
3
1000
98𝑘
3
−162
1