If you have a graphing calculaator enter the matrix then on the outside of it hit the ^ button and put -1
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Answer:
The answer is x - 13y
Step-by-step explanation:
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Given a quadratic equation 
, we define the discriminant as
The number of real solutions of the equation depend on the sign of 
:
- If
the equation has two solutions - If
the equation has one double solution - If
the equation has no real solutions
In this case, we have
And so this equation has no real solutions.
