What is expand 3-(4x-y+7)dx-2(2x+y-1)dy ?

The solution to expand 3-(4x-y+7)dx-2(2x+y-1)dy is 3-4xdx+ydx-7dx-4xdy-2ydy+2dy

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expand 3-(4x-y+7)dx-2(2x+y-1)dy

expand

3 - (4 x - y + 7) d x - 2 (2 x + y - 1) d y

3 - 4 x d x + y d x - 7 d x - 4 x d y - 2 y d y + 2 d y

Solution steps

3 - (4 x - y + 7) d x - 2 (2 x + y - 1) d y

Expand

- d x (4 x - y + 7) : - 4 x d x + y d x - 7 d x

= 3 - 4 x d x + y d x - 7 d x - 2 (2 x + y - 1) d y

Expand

- 2 d y (2 x + y - 1) : - 4 x d y - 2 y d y + 2 d y

= 3 - 4 x d x + y d x - 7 d x - 4 x d y - 2 y d y + 2 d y

(p + 10 - p - 5)^{2}

cos (x + 2) + x (\frac{x}{2} + 2)

(1 - cos (θ))^{3}

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

What is expand 3-(4x-y+7)dx-2(2x+y-1)dy ?
The solution to expand 3-(4x-y+7)dx-2(2x+y-1)dy is 3-4xdx+ydx-7dx-4xdy-2ydy+2dy