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Mathematics 9 Online
OpenStudy (anonymous):

Which of the following are a possible solution to the (3x - 1)(5x + 20) = 0? A. 1/3, 4 B. 1/3, -4 C. 1, 20 D. -1, -20

OpenStudy (asnaseer):

if a times b is zero then either a is zero or b is zero. use this fact to calculate the answer.

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