x^2-121=30

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Solution for x^2-121=30 equation:


Simplifying
x2 + -121 = 30

Reorder the terms:
-121 + x2 = 30

Solving
-121 + x2 = 30

Solving for variable 'x'.

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

Add '121' to each side of the equation.
-121 + 121 + x2 = 30 + 121

Combine like terms: -121 + 121 = 0
0 + x2 = 30 + 121
x2 = 30 + 121

Combine like terms: 30 + 121 = 151
x2 = 151

Simplifying
x2 = 151

Take the square root of each side:
x = {-12.288205727, 12.288205727}

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