If one zero of the below polynomial is eight times the other , find the value of K. 2x² - kx +1
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Step-by-step explanation:
let the zeros of tge pollynomial be
t and 8t
then sum of zeros is 9t
9t= k/2
k= 18t_________1
product of zeros
is 8 t ^2= 1/2
t= +1/4 or -4
put in first when 1/4
then k = 18/4= 9/2
when -1/4
tthen k= -9/2
so two answers for k are possible
hope it helps
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