2a^2+a^2=4R^2

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Solution for 2a^2+a^2=4R^2 equation: 


Simplifying
2a2 + a2 = 4R2

Combine like terms: 2a2 + a2 = 3a2
3a2 = 4R2

Solving
3a2 = 4R2

Solving for variable 'a'.

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

Divide each side by '3'.
a2 = 1.333333333R2

Simplifying
a2 = 1.333333333R2

Take the square root of each side:
a = {-1.154700538R, 1.154700538R}

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