guillia01owp7b7 guillia01owp7b7

23-01-2018
Mathematics

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Find the radius of a circle with an area of 16x^2+24x+9

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Krysmer31 Krysmer31

29-01-2018

Area of circle =π *r^2
so π*r^2 = π(16x^2 + 24x + 9)
r^2 = 16x^2 + 24x + 9
= (4x +3)(4x+3)
= (4x +3)^2
Take square roots of both sides
r = 4x +3

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