SOLUTION: How would I solve for (x+8)^2 -7= -12 since you can't have the square root of a negetive number?

Question 173310: How would I solve for (x+8)^2 -7= -12
since you can't have the square root of a negetive number?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given equation.

Add to both sides.

Combine like terms.

Take the square root of both sides.

or Break up the "plus/minus" to form two equations.

or Factor -5 into -1*5

or Break up the square root.

or Replace with "i". Note:

or Subtract from both sides.

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Answer:

So the solutions are or .

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