SOLUTION: The area of a circle is given by the expression pi (16x^2 -40x+25) what is the diameter of the circle

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Question 1128140: The area of a circle is given by the expression pi (16x^2 -40x+25) what is the diameter of the circle
Answer by ikleyn(52817) About Me  (Show Source):
You can put this solution on YOUR website!
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Area = pi%2Ar%5E2 = pi%2A%2816x%5E2+-40x%2B25%29 = pi%2A%284x-5%29%5E2  ====>


r%5E2 = %284x-5%29%5E2  ====>  r = |4x-5|  ====>  the diameter = 2r = 2*|4x-5|    ANSWER.

Solved.