Question

If (x + k)is a factor of 2x²+5kx+10, find k

Answer 1

Answer:

Step-by-step explanation:

if any polynomial is a factor to the other polynomial

then equate the factor to zero

then you get some value of the variable

substitute that value in the main polynomial which will be equals to zero

in your question -k is the value of the factor substitute in the main equation

2(k)square-5(k)square+10=0

3(k)square= 10

k square =10/3

k=square root of 10/3

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