2x^2=21

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Solution for 2x^2=21 equation: 


Simplifying
2x2 = 21

Solving
2x2 = 21

Solving for variable 'x'.

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

Divide each side by '2'.
x2 = 10.5

Simplifying
x2 = 10.5

Take the square root of each side:
x = {-3.240370349, 3.240370349}

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