4 3/4 minus 5/8 in simplest form

1 answer:

4 0

$4\frac{3}{4}-\frac{5}{8}\\\\\frac{(4*4)+3}{4}-\frac{5}{8}\\\\\frac{19}{4}-\frac{5}{8}\\\\\frac{19}{4}(\frac{2}{2})-\frac{5}{8}\\\\\frac{38}{8}-\frac{5}{8}\\\\\frac{38-5}{8}\\\\\frac{33}{8}\\\\\\4\frac{1}{8}$

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To use the u substitution, we will assume that:
2x + 3 = u

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The roots can be found using the rule found in the attached picture.
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This means that, for the given expression:
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Hope this helps :)