Question

Find the value of a if x+6 is a factor of x3+3x+4x+a

Answer 1

Answer:

let p(x)=x^3+3x+4x+a

x+6=0

x=(-6)

p(-6)= -6^3+3*-6+4*-6+a

0= -216-18-24+a

0=-258+a

258=a

Answer 2

Answer: a=258

Step-by-step explanation:

Solution given in the attached photo below.......

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