Question

if (x-5) and x-k are the factors of x^2-3x-10 then the value of k is​

Answer 1

Answer:

Consider the given polynomial.

x4−k2x2+3x−6k

Since, x+k is the factor of given polynomial 

So, put x=−k

Therefore,

(−k)4−k2(−k)2+3(−k)−6k=0

k4−k4−3k−6k=0

−9k=0

k=0

Hence, the value of k is 0.

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Answer 2

Answer:

your answer is =-2

Step-by-step explanation:

put x=5 in function.equal to zero

put k=0 in function equal to zero

then evaluate both first and second equation and find value of k.

k will be -2