Question

if one zero of polynomial 4x²-12x+k+2 is five times the other zero find the value of k

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Answer 1

Answer:

4x^2-12x+k+2=0

zeroes=> z and 5z

as we know,

sum of roots=-b/a and

product of roots=c/a

6z=12/4=3=>z=1/2 so 5z=5/2

(1/2)×(5/2)=(k+2)÷4

5/4=k/4+1/2

k/4=3/4

k=3

Step-by-step explanation:

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