Find k such that (x+2) is a factor of (x^3-kx^2+3x+7k)
1 answer:
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We are given
Firstly, we simplify left side
Left side is
we will make all x terms together
and y terms together
we can multiply left side by using exponent rule
now, we can set them equal
Since, both sides have x,y and 8
and both are equal
so, their exponent must be equal
so, exponent of y must also be equal
we get
................Answer
Answer:
answer is b
Step-by-step explanation:
look at the picture
