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OpenStudy (anonymous):
solve x^2-9x+20=0 solve x^2-9x+20=0 @Mathematics
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myininaya (myininaya):
20=-5(-4) -9=-5-4
OpenStudy (mimi_x3):
(x-5)(x-4) = 0 x = 5 , 4
myininaya (myininaya):
(x-5)(x-4)=0
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