q^2-4q+c=0

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Solution for q^2-4q+c=0 equation:


Simplifying
q2 + -4q + c = 0

Reorder the terms:
c + -4q + q2 = 0

Solving
c + -4q + q2 = 0

Solving for variable 'c'.

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

Add '4q' to each side of the equation.
c + -4q + 4q + q2 = 0 + 4q

Combine like terms: -4q + 4q = 0
c + 0 + q2 = 0 + 4q
c + q2 = 0 + 4q
Remove the zero:
c + q2 = 4q

Add '-1q2' to each side of the equation.
c + q2 + -1q2 = 4q + -1q2

Combine like terms: q2 + -1q2 = 0
c + 0 = 4q + -1q2
c = 4q + -1q2

Simplifying
c = 4q + -1q2

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