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

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

User: Factor x2 + 9x + 14.
A. (x + 7)(x + 2)
B. (x- 2)(x + 7)
C. (x+14)(x + 2)
D. None of the above

User: Which polynomial has a greatest common factor of 16x3 y2?
A. 16x7 y4 - 240x5 y2
B. 48x6 y5 + 80x4 y3
C. 32x6 y2 + 176x3 y4
D. 174x4 y3 - 112x3 y2

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