Question

if 2 and 1/2 are the zeros of polynomial 4x^2 -2x -(k-4) ​

Answer 1

Answer:

hey mate.. your answer:

Firstly, they have given that 2 and 1/2 are the zeroes.

So, basically, you should substitute these values one by one in the equation for x

in the first case,

p(x) = 4x²-2x-(k-4)

p(x) = 4x²-2x-k + 4

p(x) = 4 (2) ² - 2(2) -k+4=0

64-4-k+4=0

64-k=0

k=64

do the same taking 1/2..

hope this helps

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Answer 2

Step-by-step explanation:

p(x)=4x^2-2x-(k-4)

p(x)=4×2^2-2×2-(1/2-4)

p(x)=16-4-7/2

p(x)=12-7/2

p(x)=17/2