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Mathematics 21 Online
OpenStudy (anonymous):

Solve the equation by graphing: x2 – 18x + 81 = 0. A. {-2, 9} B. {9/2, 3} C. {9} D. No solution

OpenStudy (anonymous):

9

OpenStudy (anonymous):

if u factor it, its (x - 9)^2 which is 9

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