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Popular >

simplify (-3-5i)^6

Solution

simplify

(- 3 - 5 i)^{6}

Solution

39104 - 3960 i

Solution steps

(- 3 - 5 i)^{6}

Apply binomial theorem:

(a + b)^{n} = i = 0 \sum n (i n) a^{(n - i)} b^{i}

a = - 3, b = - 5 i

= i = 0 \sum 6 (i 6) (- 3)^{(6 - i)} (- 5 i)^{i}

Expand summation

= \frac{6 !}{0 ! ( 6 - 0 ) !} (- 3)^{6} (- 5 i)^{0} + \frac{6 !}{1 ! ( 6 - 1 ) !} (- 3)^{5} (- 5 i)^{1} + \frac{6 !}{2 ! ( 6 - 2 ) !} (- 3)^{4} (- 5 i)^{2} + \frac{6 !}{3 ! ( 6 - 3 ) !} (- 3)^{3} (- 5 i)^{3} + \frac{6 !}{4 ! ( 6 - 4 ) !} (- 3)^{2} (- 5 i)^{4} + \frac{6 !}{5 ! ( 6 - 5 ) !} (- 3)^{1} (- 5 i)^{5} + \frac{6 !}{6 ! ( 6 - 6 ) !} (- 3)^{0} (- 5 i)^{6}

Simplify

\frac{6 !}{0 ! ( 6 - 0 ) !} (- 3)^{6} (- 5 i)^{0} : 729

Simplify

\frac{6 !}{1 ! ( 6 - 1 ) !} (- 3)^{5} (- 5 i)^{1} : 7290 i

Simplify

\frac{6 !}{2 ! ( 6 - 2 ) !} (- 3)^{4} (- 5 i)^{2} : 30375 i^{2}

Simplify

\frac{6 !}{3 ! ( 6 - 3 ) !} (- 3)^{3} (- 5 i)^{3} : 67500 i^{3}

Simplify

\frac{6 !}{4 ! ( 6 - 4 ) !} (- 3)^{2} (- 5 i)^{4} : 84375 i^{4}

Simplify

\frac{6 !}{5 ! ( 6 - 5 ) !} (- 3)^{1} (- 5 i)^{5} : 56250 i^{5}

Simplify

\frac{6 !}{6 ! ( 6 - 6 ) !} (- 3)^{0} (- 5 i)^{6} : 15625 i^{6}

= 729 + 7290 i + 30375 i^{2} + 67500 i^{3} + 84375 i^{4} + 56250 i^{5} + 15625 i^{6}

Simplify

729 + 7290 i + 30375 i^{2} + 67500 i^{3} + 84375 i^{4} + 56250 i^{5} + 15625 i^{6} : - 3960 i + 39104

= - 3960 i + 39104

Rewrite in standard complex form:

39104 - 3960 i

= 39104 - 3960 i

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Frequently Asked Questions (FAQ)

What is (-3-5i)^6 ?
The solution to (-3-5i)^6 is 39104-3960i