If one of the zero of a polynomial 3x² -8x+2k+1 is seven times the ot

1.	If one of the zero of a polynomial 3x² -8x+2k+1 is seven times the other, find the value of k
Answer» GIVEN polynomial is 3x^-8x+2x+1 Let ONE of the zero be X. Then, other zero =7x. x+7x= - 8/3 => 8x=8/3 =>x=1/3. Products of zero, =>x×7x=2k+1/3 =>7x^=2k+1/3 =>21×1/9=2k+1 =>7/3=2k +1 =>2k=7/3-1=4/3 =>2k=7-1/3=4/3 =>k=2/3.

If one of the zero of a polynomial 3x² -8x+2k+1 is seven times the other, find the value of k

Answer»

GIVEN polynomial is 3x^-8x+2x+1

Let ONE of the zero be X.

Then, other zero =7x.

x+7x= - 8/3

=> 8x=8/3

=>x=1/3.

Products of zero,

=>x×7x=2k+1/3

=>7x^=2k+1/3

=>21×1/9=2k+1

=>7/3=2k +1

=>2k=7/3-1=4/3

=>2k=7-1/3=4/3

=>k=2/3.