84+x^2=100

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Solution for 84+x^2=100 equation: 


Simplifying
84 + x2 = 100

Solving
84 + x2 = 100

Solving for variable 'x'.

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

Add '-84' to each side of the equation.
84 + -84 + x2 = 100 + -84

Combine like terms: 84 + -84 = 0
0 + x2 = 100 + -84
x2 = 100 + -84

Combine like terms: 100 + -84 = 16
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

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