Question 647119
Is this {{{4/(7-i)}}}? or 4(7-i)?
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If 4(7-i), then distribute the 4 --> 28-4i
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If {{{4/(7-i)}}}, then
{{{(4/(7-i))((7+i)/(7+i)) = (4(7-i))/((7-i)(7+i))}}}
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denominator
(7-i)(7+i) = {{{49 - i^2}}} = 49 - -1 = 50
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{{{(4(7-i))/50 = (28-4i)/50}}}
Simplify by dividing by 2
{{{(14-2i)/25 = (7-i)/12.5}}}
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