r^2+4r+n=0

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Solution for r^2+4r+n=0 equation:


Simplifying
r2 + 4r + n = 0

Reorder the terms:
n + 4r + r2 = 0

Solving
n + 4r + r2 = 0

Solving for variable 'n'.

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

Add '-4r' to each side of the equation.
n + 4r + -4r + r2 = 0 + -4r

Combine like terms: 4r + -4r = 0
n + 0 + r2 = 0 + -4r
n + r2 = 0 + -4r
Remove the zero:
n + r2 = -4r

Add '-1r2' to each side of the equation.
n + r2 + -1r2 = -4r + -1r2

Combine like terms: r2 + -1r2 = 0
n + 0 = -4r + -1r2
n = -4r + -1r2

Simplifying
n = -4r + -1r2

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