The problem
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how do I get from step 2 to step 3
Answer provided by our tutors
To see more step by step solution, go to 'Options' tab, select 'Show: a lot of steps' and click 'Apply'.
You can obtain an explanation for any step by clicking on it. Please note that you cannot click on the very first expression, which is the original problem.
If you select 'Show: a lot of steps' and click 'Apply' you will get additional steps and explanations:
