Question

(x-5) is factor of x cude+3x sq.+ky-10 find the value of k​

Answer 1

Answer:

Value of k = 11

Step-by-step explanation:

Factor Theorem:

" If (x-a) is a factor of a polynomial p(x) then p(a) = 0"

Here ,Let p(x) = 3x²+kx+6if (x+3) is a factor of p(x)

then p(-3) = 0=> p(-3) = 3(-3)²+k(-3)+6 = 0

=> 27-3k+6 =0

=> -3k+33=0

=> -3k = -33

Divide both sides by (-3),

we get=> k = 11

Therefore,Value of k = 11

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Answer 2

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