The problem
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Dear Sir,
Please explain(1) why you placed the numerator & denomonator in parenthese.( 2) and why the C is negative and placed before the 4 ... many thanks
Answer provided by our tutors
Enclosing an expression in parentheses can simply be a good practice, clearing identifying what terms will be manipulated. Clicking on a particular solution step is the best way to review the logic, as shown in the image below that pertains to ordering an expression with the numeric term last.
