If both (x+1) and(x-1) are factors of ax³+x²- 2x+b find a and b
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B=(-2)
A=3
p(1)=3*(1)^3+(1)^2-2*(1)-2
=3+1-2-2
=4-4
=0
Hence proved
A=3
p(1)=3*(1)^3+(1)^2-2*(1)-2
=3+1-2-2
=4-4
=0
Hence proved
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