GraceValentine GraceValentine

31-03-2017
Mathematics

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31-03-2017

It is A because you subsitute the x in the equation A) (2x-8)(7x+5)=0 x=4 x=5,7 (fraction)
subtitute the x now and you get
(2(4)-8)(7(-5,7)+5) = 0

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