How can you describe the solution set of the equation 16x2 - 8x + 1 = 0?

Factor the expression: 16x² − 8x + 1 = (4x − 1)(4x − 1) = (4x − 1)². Setting the factor equal to zero gives 4x − 1 = 0, so x = 1/4; the repeated factor means there is one distinct real solution. Therefore, the correct choice is “There is one real solution because the expression’s factors are the same.”

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