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

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

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

expand

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

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

Solution steps

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

Expand

d x (2 x - 1) : 2 x d x - d x

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

Expand

d y (3 y + 7) : 3 y d y + 7 d y

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

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

(\frac{1}{2} + \frac{1}{2} cos (2 x))^{4}

(x - x y) d y

e^{x} (x + 2)

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

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