2r^2=9

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Solution for 2r^2=9 equation: 


Simplifying
2r2 = 9

Solving
2r2 = 9

Solving for variable 'r'.

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

Divide each side by '2'.
r2 = 4.5

Simplifying
r2 = 4.5

Take the square root of each side:
r = {-2.121320344, 2.121320344}

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