body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Theory

$a^{2} = a \cdot a$

A squared number, that is, a number raised to the power of

2,

can be rewritten as that number multiplied by itself.

5^{2} = 5 \cdot 5 x^{2} = x \cdot x

Exercises

Recommended exercises

To get personalized recommended exercises, please login first.

Return to lesson.