Question 1 Report
Find the solution of the equation \(x - 8\sqrt{x} + 15 = 0\)
Answer Details
x - 8√x x + 15 = 0 x + 15 = 8√x x square both sides = (x + 15)2 = (8 √x x 2 x2 + 225 + 30x = 64x x2 + 225 + 30x - 64x = 0 x2 - 34x + 225 = 0 (x - 9)(x - 25) = 0 x = 9 or 25
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