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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
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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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