What is expand ((1+j^3)(1+j^7))/((7-j^9)(2-j)) ?

The solution to expand ((1+j^3)(1+j^7))/((7-j^9)(2-j)) is (1+j^7+j^3+j^{10})/(14-7j-2j^9+j^{10)}

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expand ((1+j^3)(1+j^7))/((7-j^9)(2-j))

expand

\frac{( 1 + j ^{3} ) ( 1 + j ^{7} )}{( 7 - j ^{9} ) ( 2 - j )}

\frac{1 + j ^{7} + j ^{3} + j ^{10}}{14 - 7 j - 2 j ^{9} + j ^{10}}

Solution steps

\frac{( 1 + j ^{3} ) ( 1 + j ^{7} )}{( 7 - j ^{9} ) ( 2 - j )}

Expand

(7 - j^{9}) (2 - j) : 14 - 7 j - 2 j^{9} + j^{10}

= \frac{( j ^{3} + 1 ) ( j ^{7} + 1 )}{14 - 7 j - 2 j ^{9} + j ^{10}}

Expand

(1 + j^{3}) (1 + j^{7}) : 1 + j^{7} + j^{3} + j^{10}

= \frac{1 + j ^{7} + j ^{3} + j ^{10}}{14 - 7 j - 2 j ^{9} + j ^{10}}

(2 x + i)^{2}

\frac{- x ^{2} - 1}{( x ^{2} - 1 ) ^{2}}

\frac{s ^{2} + 6 s + 9}{( s - 1 ) ( s - 2 ) ( s + 4 )}

(x + 23) (x - 23)

(1 + 5 x i)^{2}

What is expand ((1+j^3)(1+j^7))/((7-j^9)(2-j)) ?
The solution to expand ((1+j^3)(1+j^7))/((7-j^9)(2-j)) is (1+j^7+j^3+j^{10})/(14-7j-2j^9+j^{10)}