Question

Find the value of k, if x – 1 is a factor of 4x + k. 

Answer 1

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Find the value of k, if x – 1 is a factor of 4x + k. 

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If x -1 is a factor of 4x + k then,

➥⠀⠀⠀⠀⠀x = 1

putting value of x in 4x + k

➩⠀⠀⠀⠀⠀4x + k = 0

➩⠀⠀⠀⠀⠀4× 1 +k = 0

➩⠀⠀⠀⠀⠀4 + k = 0

➩⠀⠀⠀⠀⠀k = -4

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Answer 2

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Step-by-step explanation:

g(x)=x-1=0

=x=1

then,

p(x)=4x+k=0

=4×1+k=0

4+k=0

k=–4

thus, the value of k is -4