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Mathematics 20 Online
OpenStudy (anonymous):

find a value of k so that (x+2) will be a factor of x^3 - 4x^2 +kx +2

OpenStudy (hba):

Use synthetc division method @mbailey1

OpenStudy (anonymous):

can you help me solve it using that? @hba

OpenStudy (hba):

@mbailey1 Are you familiar with SDM ?

OpenStudy (anonymous):

no @hba

OpenStudy (campbell_st):

use the factor theorem f(-2) = 0 so (-2)^3 -4(-2)^2 +k(-2) + 2 = 0 solve for k...

OpenStudy (anonymous):

i got -3 =k, is that right @campbell_st

OpenStudy (campbell_st):

nope... i don't think its correct...

OpenStudy (anonymous):

what did you get? @campbell_st

OpenStudy (campbell_st):

I didn't get -3 its -8 - 16 -2k + 2 = 0

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