k(x)=-0.2x^2

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Solution for k(x)=-0.2x^2 equation: 


Simplifying
k(x) = -0.2x2

Multiply k * x
kx = -0.2x2

Solving
kx = -0.2x2

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Divide each side by 'x'.
k = -0.2x

Simplifying
k = -0.2x

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