Provide an appropriate response.Which one of the following methods cannot be used to solve the equation x2 - 4x - 9 = 0?
A. Completing the square
B. Factoring
C. Quadratic formula
D. All of the methods can be used.
Answer: B
Mathematics
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A. 12x(3 - 1) B. 12(x - 3) C. 12(3x - 1) D. 12x(3x - 1)
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A. 
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C. - 14
D. - 
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? 
A. 5xy
B. 
C. 5
D. 2
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