2r^2+8=0

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Solution for 2r^2+8=0 equation:


Simplifying
2r2 + 8 = 0

Reorder the terms:
8 + 2r2 = 0

Solving
8 + 2r2 = 0

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + 2r2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 2r2 = 0 + -8
2r2 = 0 + -8

Combine like terms: 0 + -8 = -8
2r2 = -8

Divide each side by '2'.
r2 = -4

Simplifying
r2 = -4

Reorder the terms:
4 + r2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + r2 = 0

The solution to this equation could not be determined.

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