x^2-2=17

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Solution for x^2-2=17 equation: 


Simplifying
x2 + -2 = 17

Reorder the terms:
-2 + x2 = 17

Solving
-2 + x2 = 17

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + x2 = 17 + 2

Combine like terms: -2 + 2 = 0
0 + x2 = 17 + 2
x2 = 17 + 2

Combine like terms: 17 + 2 = 19
x2 = 19

Simplifying
x2 = 19

Take the square root of each side:
x = {-4.358898944, 4.358898944}

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