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Simplifying
x2 + -42 = 0
Reorder the terms:
-42 + x2 = 0
Solving
-42 + x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '42' to each side of the equation.
-42 + 42 + x2 = 0 + 42
Combine like terms: -42 + 42 = 0
0 + x2 = 0 + 42
x2 = 0 + 42
Combine like terms: 0 + 42 = 42
x2 = 42
Simplifying
x2 = 42
Take the square root of each side:
x = {-6.480740698, 6.480740698}
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