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Simplifying
2n2 = 400
Solving
2n2 = 400
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Divide each side by '2'.
n2 = 200
Simplifying
n2 = 200
Take the square root of each side:
n = {-14.142135624, 14.142135624}
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