The principal square root of a real number can't be negative. That's a little different than saying that the Cubs probably won't win the pennant next year. (Hey, we're just being realistic.)
Whatever 9x + 3 is, its square root definitely can't be -11. This equation has no real number solutions.
The radical is all by itself on one side of the equation, so we can square both sides:
After rearranging, we can rewrite this equation as:
0 = x2 + x + 5
Then we can solve it using the quadratic formula. The solutions are:
Now we have a problem, because we can't take the square root of -19. This equation has no solutions. Foiled again.
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