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Simplifying
4x + x2 + -4x = 0
Reorder the terms:
4x + -4x + x2 = 0
Combine like terms: 4x + -4x = 0
0 + x2 = 0
x2 = 0
Solving
x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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