Question

If (x+2) Is a factor of x^3-6x^2+kx+10
k=?

Answer 1

The value of k is -11

Further explanation:

Any number being a factor states that the value of expression will be equal to zero at the factor.

Given

$x^3-6x^2+kx+10$

and

x+2 is a factor

x+2 = 0

x=-2

If x=-2 is a factor of given expression then the expression will be zero at x=-2

So.

$(-2)^3-6(-2)^2+k(-2)+10 = 0\\-8-6(4)-2k+10 = 0\\-8-24-2k+10 = 0\\-22-2k=0\\-2k=22\\k = -11$

The value of k is -11

Keywords: Synthetic division, Factorization

Learn more about synthetic division at:

• brainly.com/question/5461619
• brainly.com/question/8280736

#LearnwithBrainly

Answer 2

Answer:

k=-11

Step-by-step explanation:

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