What is expand (xy+y^2)dy+(y^2+1)dx ?

The solution to expand (xy+y^2)dy+(y^2+1)dx is xydy+y^2dy+y^2dx+dx

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expand (xy+y^2)dy+(y^2+1)dx

expand

(x y + y^{2}) d y + (y^{2} + 1) d x

x y d y + y^{2} d y + y^{2} d x + d x

Solution steps

(x y + y^{2}) d y + (y^{2} + 1) d x

Expand

d y (x y + y^{2}) : x y d y + y^{2} d y

= x y d y + y^{2} d y + (y^{2} + 1) d x

Expand

d x (y^{2} + 1) : y^{2} d x + d x

= x y d y + y^{2} d y + y^{2} d x + d x

\frac{a - ib}{1 + ( a + ib ) ^{2}}

(\frac{1}{3} x + 1) (x + 2) (x + 3)

(6 x + 9 y) p o w e r^{2}

(n + n)^{3}

10 (2 + lo g_{10} (913))

What is expand (xy+y^2)dy+(y^2+1)dx ?
The solution to expand (xy+y^2)dy+(y^2+1)dx is xydy+y^2dy+y^2dx+dx