7+x(x)=221

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Solution for 7+x(x)=221 equation: 


Simplifying
7 + x(x) = 221

Multiply x * x
7 + x2 = 221

Solving
7 + x2 = 221

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + x2 = 221 + -7

Combine like terms: 7 + -7 = 0
0 + x2 = 221 + -7
x2 = 221 + -7

Combine like terms: 221 + -7 = 214
x2 = 214

Simplifying
x2 = 214

Take the square root of each side:
x = {-14.628738838, 14.628738838}

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