ow sometimes you want to force things to be done in a different way. This is what parentheses are used for. ale 1: Groups are simplified first. II, Whatever is enclosed in parentheses ( -m ), braces ( - ), brackets , all in a numerator orolute value symbol |-|| or all under a radical
\sqrt(x)
are done before anything else (and things in the inner most parenthese or example, simplify the following expression yourself, then enter the expression in the box below:
(1 |9-3|)/(2 \sqrt(49))
Hiett: This is a good place to use [ ]'s and also to use the "Preview" button. Also remember, In in standurd notation is absolu|x| with abs (x).
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