What is expand (y+1)dx+(4x-y)dy ?

The solution to expand (y+1)dx+(4x-y)dy is ydx+dx+4xdy-ydy

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expand (y+1)dx+(4x-y)dy

expand

(y + 1) d x + (4 x - y) d y

y d x + d x + 4 x d y - y d y

Solution steps

(y + 1) d x + (4 x - y) d y

Expand

d x (y + 1) : y d x + d x

= y d x + d x + (4 x - y) d y

Expand

d y (4 x - y) : 4 x d y - y d y

= y d x + d x + 4 x d y - y d y

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\frac{4 ( s + 2 )}{s ( s ^{3} + 2 s ^{2} + 3 s + 4 )}

(\frac{( k s - s ) ( k ^{2} - 1 ) ( s - 1 )}{s ^{2} - s - 2}) + (k - 1)

\frac{x ^{2}}{( 1 + 0.6 x ) ( 1 - x )}

What is expand (y+1)dx+(4x-y)dy ?
The solution to expand (y+1)dx+(4x-y)dy is ydx+dx+4xdy-ydy