find the remainder when x³+3x+1 is divided by x+1 (¡¡)x-½ plz it's very urgently please
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x=-1
p(-1)= -1-3+1=-3 remainder
x= 1/2
p(1/2)= 1/8+3/2+1
= 1+12+8/8= 21/8
p(-1)= -1-3+1=-3 remainder
x= 1/2
p(1/2)= 1/8+3/2+1
= 1+12+8/8= 21/8
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