3x*x=420

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Solution for 3x*x=420 equation: 


Simplifying
3x * x = 420

Multiply x * x
3x2 = 420

Solving
3x2 = 420

Solving for variable 'x'.

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

Divide each side by '3'.
x2 = 140

Simplifying
x2 = 140

Take the square root of each side:
x = {-11.832159566, 11.832159566}

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