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Simplifying
0 = 18x2 + -4
Reorder the terms:
0 = -4 + 18x2
Solving
0 = -4 + 18x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-18x2' to each side of the equation.
0 + -18x2 = -4 + 18x2 + -18x2
Remove the zero:
-18x2 = -4 + 18x2 + -18x2
Combine like terms: 18x2 + -18x2 = 0
-18x2 = -4 + 0
-18x2 = -4
Divide each side by '-18'.
x2 = 0.2222222222
Simplifying
x2 = 0.2222222222
Take the square root of each side:
x = {-0.471404521, 0.471404521}
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