I now start to extend the work covered so far by looking at equations with brackets. In my second example in the video, care must be taken. Very easy to trip up.

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## Summary Exercise

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I now start to extend the work covered so far by looking at equations with brackets. In my second example in the video, care must be taken. Very easy to trip up.

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Hassan DaudJanuary 22, 2017 at 9:14 pmexcellent explanation………………….

thank you………………………………..

i really enjoyed