c^2-4d^2=0

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Solution for c^2-4d^2=0 equation: 


Simplifying
c2 + -4d2 = 0

Solving
c2 + -4d2 = 0

Solving for variable 'c'.

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

Add '4d2' to each side of the equation.
c2 + -4d2 + 4d2 = 0 + 4d2

Combine like terms: -4d2 + 4d2 = 0
c2 + 0 = 0 + 4d2
c2 = 0 + 4d2
Remove the zero:
c2 = 4d2

Simplifying
c2 = 4d2

Take the square root of each side:
c = {-2d, 2d}

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