Question

if x+1is a factor of ax^3-2x+4a-6,find a.

Answer 1

let g(x) = x+1
=>x=-1
p(x) = ax^3-2x+4a-6 =0

♦ a×(-1)^3-2×(-1)+4×(-1)-6=0

♦ -a+2-4-6=0

♦ -a-8 =0

♦ a=8

hope it helps!!

if don't know sorry!!


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