SOLUTION: the answer is 9.8 and 1.2 how did it happen? a^2-11a=12=o =11-sqrt73/2 or 11+sprt73/2 ????????????? sqrt 73 is not an integer Thank you

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Question 47097: the answer is 9.8 and 1.2 how did it happen?
a^2-11a=12=o
=11-sqrt73/2 or 11+sprt73/2 ????????????? sqrt 73 is not an integer
Thank you

Answer by Earlsdon(6294)   (Show Source): You can put this solution on YOUR website!
Solve:
Using the quadratic formula:



or
or
a = 9.8 or a = 1.2 Rounded to the nearest tenth.

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