SOLUTION: How to use the quadratic formula to solve for Q in the equation Q(squared)-2Q-4=0.

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Question 535774: How to use the quadratic formula to solve for Q in the equation Q(squared)-2Q-4=0.
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
Pretend the Q is an x. It does not matter what you call the variable.
In the quadratic formula a is the coefficient of the second degree term Q62 or x%5E2,
b is the coefficient of the first degree term Q or x,
and c is the independent (zero degree), constant
In this case a=1, b=-2, and c=-4.
Q+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+, so