(x^2)+31+x^2=1681

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Solution for (x^2)+31+x^2=1681 equation: 


Simplifying
(x2) + 31 + x2 = 1681
x2 + 31 + x2 = 1681

Reorder the terms:
31 + x2 + x2 = 1681

Combine like terms: x2 + x2 = 2x2
31 + 2x2 = 1681

Solving
31 + 2x2 = 1681

Solving for variable 'x'.

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

Add '-31' to each side of the equation.
31 + -31 + 2x2 = 1681 + -31

Combine like terms: 31 + -31 = 0
0 + 2x2 = 1681 + -31
2x2 = 1681 + -31

Combine like terms: 1681 + -31 = 1650
2x2 = 1650

Divide each side by '2'.
x2 = 825

Simplifying
x2 = 825

Take the square root of each side:
x = {-28.722813233, 28.722813233}

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