What is expand y(0.8x+0.2y=0) ?

The solution to expand y(0.8x+0.2y=0) is 0.8xy+0.2y^2=0

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expand y(0.8x+0.2y=0)

expand

y (0.8 x + 0.2 y = 0)

0.8 x y + 0.2 y^{2} = 0

Solution steps

y (0.8 x + 0.2 y = 0)

= y (0.8 x + 0 \cdot 0.2 = y)

Apply the distributive law:

a (b + c) = ab + a c

a = y, b = 0.8 x, c = 0.2 y = 0

y \cdot 0.8 x + y \cdot 0.2 y = 0

0.8 x y + 0.2 yy = 0

Expand

0.8 x y + 0.2 yy : 0.8 x y + 0.2 y^{2}

0.8 x y + 0.2 y^{2} = 0

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\frac{( k ( k + 1 ) ( 2 k + 1 ) )}{6}

What is expand y(0.8x+0.2y=0) ?
The solution to expand y(0.8x+0.2y=0) is 0.8xy+0.2y^2=0