What is expand-j/((1-2j)*(1+2j)) ?

The solution to expand-j/((1-2j)*(1+2j)) is -j/(1-4j^2)

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expand-j/((1-2j)*(1+2j))

expand

- \frac{j}{( 1 - 2 j ) \cdot ( 1 + 2 j )}

- \frac{j}{1 - 4 j ^{2}}

Solution steps

- \frac{j}{( 1 - 2 j ) ( 1 + 2 j )}

Expand

(1 - 2 j) (1 + 2 j) : 1 - 4 j^{2}

= - \frac{j}{- 4 j ^{2} + 1}

\frac{d}{d x} \frac{( 50 ( x - 2 ) ^{3} )}{e ^{x}} + 10

\frac{8}{( s - 2 ) ( s ^{2} - 4 s + 20 )}

\frac{x ^{2} - m ^{2}}{x ( 2 + 2 m )}

\frac{( 2 x ^{2} - x + 16 )}{( 2 ( x + 2 ) )}

What is expand-j/((1-2j)*(1+2j)) ?
The solution to expand-j/((1-2j)*(1+2j)) is -j/(1-4j^2)