-0.4x^2-0.02x^2=0

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Solution for -0.4x^2-0.02x^2=0 equation: 


Simplifying
-0.4x2 + -0.02x2 = 0

Combine like terms: -0.4x2 + -0.02x2 = -0.42x2
-0.42x2 = 0

Solving
-0.42x2 = 0

Solving for variable 'x'.

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

Divide each side by '-0.42'.
x2 = 0

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

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