Watch this video to learn about the rules of surds. For example, \(\sqrt 4 = 2\) is not a surd. However \(\sqrt 5\) is a surd. If you use a calculator, you will see that \(\sqrt 5 = 2.236067977...\) ...

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National 5 Simplifying expressions using the laws of indices Test questions Indices show where a number has been multiplied by itself, eg squared or cubed, or to show roots of numbers, eg square root.

Discover historical prices for EXPO stock on Yahoo Finance. View daily, weekly or monthly format back to when Exponent, Inc. stock was issued.

Mark Schoeff Jr., Purdue University and Exponent alumnus, will become the 119th president of the National Press Club when he is inaugurated in February. Shoeff said he intends to protect freedom of ...