x(x+0.9)=0

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Solution for x(x+0.9)=0 equation: 


Simplifying
x(x + 0.9) = 0

Reorder the terms:
x(0.9 + x) = 0
(0.9 * x + x * x) = 0
(0.9x + x2) = 0

Solving
0.9x + x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(0.9 + x) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0

Subproblem 2
Set the factor '(0.9 + x)' equal to zero and attempt to solve:

Simplifying
0.9 + x = 0

Solving
0.9 + x = 0

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

Add '-0.9' to each side of the equation.
0.9 + -0.9 + x = 0 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + x = 0 + -0.9
x = 0 + -0.9

Combine like terms: 0 + -0.9 = -0.9
x = -0.9

Simplifying
x = -0.9
Solution
x = {0, -0.9}

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