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Simplifying
4 = -1x2 + 4
Reorder the terms:
4 = 4 + -1x2
Add '-4' to each side of the equation.
4 + -4 = 4 + -4 + -1x2
Combine like terms: 4 + -4 = 0
0 = 4 + -4 + -1x2
Combine like terms: 4 + -4 = 0
0 = 0 + -1x2
0 = -1x2
Solving
0 = -1x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'x2' to each side of the equation.
0 + x2 = -1x2 + x2
Remove the zero:
x2 = -1x2 + x2
Combine like terms: -1x2 + x2 = 0
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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