C^2-4c=21

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Solution for C^2-4c=21 equation:


Simplifying
C2 + -4c = 21

Solving
C2 + -4c = 21

Solving for variable 'C'.

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

Add '4c' to each side of the equation.
C2 + -4c + 4c = 21 + 4c

Combine like terms: -4c + 4c = 0
C2 + 0 = 21 + 4c
C2 = 21 + 4c

Simplifying
C2 = 21 + 4c

Reorder the terms:
-21 + C2 + -4c = 21 + 4c + -21 + -4c

Reorder the terms:
-21 + C2 + -4c = 21 + -21 + 4c + -4c

Combine like terms: 21 + -21 = 0
-21 + C2 + -4c = 0 + 4c + -4c
-21 + C2 + -4c = 4c + -4c

Combine like terms: 4c + -4c = 0
-21 + C2 + -4c = 0

The solution to this equation could not be determined.

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