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

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

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

expand

(x + y) d x + (x - y) d y

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

Solution steps

(x + y) d x + (x - y) d y

Expand

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

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

Expand

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

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

\frac{1}{( x + 1 ) ^{3}}

(3 t + 2 i t)^{2}

\frac{3 x ^{2} + 6 x + 5}{( x + 2 ) ^{2}}

6 (7 + 5)

(5 - x)^{2}

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