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Popular >

simplify (9-3i)/(1+i)

Solution

simplify

\frac{9 - 3 i}{1 + i}

Solution

3 - 6 i

Solution steps

\frac{9 - 3 i}{1 + i}

Multiply by the conjugate

\frac{1 - i}{1 - i}

= \frac{( 9 - 3 i ) ( 1 - i )}{( 1 + i ) ( 1 - i )}

Simplify

\frac{( 9 - 3 i ) ( 1 - i )}{( 1 + i ) ( 1 - i )} : \frac{6 - 12 i}{2}

= \frac{6 - 12 i}{2}

Apply the fraction rule:

\frac{a + bi}{c} = \frac{a}{c} + \frac{b}{c} i

= \frac{6}{2} + \frac{- 12}{2} i

Simplify

\frac{6}{2} + \frac{- 12}{2} i : 3 - 6 i

= 3 - 6 i

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Frequently Asked Questions (FAQ)

What is (9-3i)/(1+i) ?
The solution to (9-3i)/(1+i) is 3-6i