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Physics 9 Online
OpenStudy (anonymous):

(1+kx)(64-192x-240x^2)=0 Expand and Find the value of k in which in there is no term in x^2

OpenStudy (anonymous):

sry guys typing error this is supposed to go 2 maths

OpenStudy (anonymous):

1* -240 kx*-192 this will give you (-240-192k)x^2 -240-192k=0 k=-5/4

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