9c^2-64d^2=

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Solution for 9c^2-64d^2= equation: 


Simplifying
9c2 + -64d2 = 0

Solving
9c2 + -64d2 = 0

Solving for variable 'c'.

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

Add '64d2' to each side of the equation.
9c2 + -64d2 + 64d2 = 0 + 64d2

Combine like terms: -64d2 + 64d2 = 0
9c2 + 0 = 0 + 64d2
9c2 = 0 + 64d2
Remove the zero:
9c2 = 64d2

Divide each side by '9'.
c2 = 7.111111111d2

Simplifying
c2 = 7.111111111d2

Take the square root of each side:
c = {-2.666666667d, 2.666666667d}

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