Asked by please...help...urgent..
What is the sum of all the possible values of a for which 25x^2+(a−15)x+9 has exactly one distinct real root?
Answers
Answered by
Dr. Jane
(5x -3)(5x-3)
25^x^2 -30x +9
I start with the above factors because of the 25 and the 9 and the requirement of one distinct room.
So.. a-15 = -30
25^x^2 -30x +9
I start with the above factors because of the 25 and the 9 and the requirement of one distinct room.
So.. a-15 = -30
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