SOLUTION: The equation x^2-2x-11=0 has solutions a and b. Find the value of a^2 + b^2. Please help me and give explanation in detail so I can understand it. Thank you!

Question 767458: The equation x^2-2x-11=0 has solutions a and b. Find the value of a^2 + b^2.
Please help me and give explanation in detail so I can understand it. Thank you!
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Q:
The equation has solutions a and b. Find the value of .
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The sum of the roots of a quadratic equation is equal to and the product of the roots is equal to .
In , a + b = = 2 and ab = = -11.
=
so = = = .
ANSWER:
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